wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Phy 102 chapter 2

Total questions: 66

Worksheet time: 4hrs 12mins

Name
Class
Date
1.
As a proton moves in the direction the electric field lines...
a)
it is moving from low potential to high potential and gaining electric potential energy.
b)
it is moving from low potential to high potential and losing electric potential energy.
c)
it is moving from high potential to low potential and gaining electric potential energy.
d)
it is moving from high potential to low potential and losing electric potential energy.
2.

Electric potential ____________ as distance increases.

a)

Increases

b)

Decreases

c)

Remains Constant

d)

Is 0

3.

The magnitude of electric potential is ______ at an infinite distance.

a)

0

b)

negative infinity

c)

positive infinity

d)

200

4.

Two charged spheres of radii 10 cm and 15 cm are connected by a thin wire. No current will flow, if they have

a)

The same charge on each

b)

The same energy

c)

The same potential

d)

The same field on their surfaces

5.

A hollow metal sphere of radius 5 cm is charged so that the potential on its surface is 10 V. The potential at the centre of the sphere is

a)

0 V

b)

10 V

c)

Same as at point 5 cm away from the surface

d)

Same as at point 25 cm away from the surface

6.

If a unit positive charge is taken from one point to another over an equipotential surface, then

a)

Work is done on the charge

b)

Work is done by the charge

c)

Work done is constant

d)

No work is done

7.

Two plates are 2cm apart, a potential difference of 10 V is applied between them, the electric field between the plates is

a)

20 N/C

b)

500 N/C

c)

5 N/C

d)

250 N/C

8.

Angle between equipotential surface and lines of force is

a)

0

b)

180

c)

90

d)

45

9.

Two charge +Q and -Q are situated at a certain distance. At the point exactly midway between them

a)

Electric field and potential both are zero

b)

Electric field is zero but potential is not zero

c)

Electric field is not zero but potential is zero

d)

Neither electric field nor potential is zero

10.

A charge of 5 C experiences a force of 5000 N when it is kept in a uniform electric field. What is the potential difference between two points separated by a distance of 1cm

a)

10 V

b)

250 V

c)

1000 V

d)

2500 V

11.

Electric force moves a charge of 2 x 10-10 C from point A to point B and does 5 x 10-6 J of work.

What is the difference in potential energies of A and B? (HINT* PEA -PEB)

What is the potential difference between A nd B? (HINT* VA - VB)

a)

-2x10-10 J

-4.0x10-5 V

b)

-5x10-6 J

-25000 V

c)

2x10-10 J

4.0x10-5 V

d)

5x10-6 J

25000 V

12.
A proton is accelerated from rest through a potential difference V0 and gains a speed v0. If it were accelerated instead through a potential difference of 2V0, what speed would it gain?
a)
8v0
b)
4v0
c)
v0√2
d)
2v0
13.
The electric potential at a distance of 4 m from a certain point charge is 200 V relative to infinity. What is the potential (relative to infinity) at a distance of 2 m from the same charge?
a)
600 V
b)
50 V
c)
200 V
d)
400 V
14.
How much kinetic energy does a proton gain if it is accelerated, with no friction, through a potential difference of 1.00 V? The proton is 1836 times heavier than an electron, and e = 1.60 × 10-19 C.
a)
1836 eV
b)
1836 J
c)
1.00 eV
d)
1.60 × 10-19 eV
15.
How much work must we do on an electron to move it from point A, which is at a potential of +50V, to point B, which is at a potential of -50 V, along the semicircular path shown in the figure? Assume the system is isolated from outside forces. (e = 1.60 × 10-19 C)
a)
1.60 × 10-17 J
b)
-1.6 J
c)
1.6 J
d)
-1.60 × 10-17 J
16.
A proton that is initially at rest is accelerated through an electric potential difference of magnitude 500 V.  What speed does the proton gain? (e = 1.60 × 10-19 C , mproton = 1.67 × 10-27 kg)
a)
1.1 × 105 m/s
b)
2.2 × 105 m/s
c)
9.6 × 105 m/s
d)
3.1 × 105 m/s
17.
A 4.0-g bead carries a charge of 20 μC.  The bead is accelerated from rest through a potential difference V, and afterward the bead is moving at 2.0 m/s.  What is the magnitude of the potential difference V?
a)
400 V
b)
200 V
c)
400 kV
d)
800 kV
18.
A sphere with radius 2.0 mm carries a  charge. What is the potential difference,  between point B, which is  from the center of the sphere, and point A, which is  from the center of the sphere?  (k = 1/4πε0 = 9.0 × 109 N ∙ m2/C2)
a)
1500 V
b)
-0.63 V
c)
-1500 V
d)
170 V
19.
A +4.0-μC and a -4.0-μC point charge are placed as shown in the figure. What is the potential difference between points A and B? (k = 1/4πε0 = 9.0 × 109 N ∙ m2/C2)
a)
0 V
b)
48 kV
c)
96 kV
d)
48 V
20.
An electron is released from rest at a distance of 9.00 cm from a fixed proton. How fast will the electron be moving when it is 3.00 cm from the proton? (k = 1/4πε0 = 8.99 × 109 N ∙ m2/C2, e = 1.60 × 10-19 C, melectron = 9.11 × 10-31 kg, mproton = 1.67 × 10-27 kg) 
a)
130 m/s
b)
4.64 × 105 m/s
c)
1.06 × 103 m/s
d)
106 m/s
21.
In a region where the electric field is uniform and points in the +x direction, the electric potential is -2000 V at x = 8 m and is +400 V at x = 2 m. What is the magnitude of the electric field?
a)
500 V/m
b)
600 V/m
c)
200 V/m
d)
400 V/m
22.
Four charged particles (two having a charge +Q and two having a charge -Q) are arranged in the xy-plane, as shown in the figure. These particles are all equidistant from the origin.  The electric potential (relative to infinity) at point P on the z-axis due to these particles, is
a)
Positive
b)
Negative
c)
zero
d)
impossible to determine based on the information
23.
small ink droplets sprayed with an electric charge are controlled by electrostatic plates to create images on paper
a)
xerography
b)
grounding
c)
ink jet printer
d)
photoconductor
24.
machine that produces a large amount of excess charge, used for experiments with high voltage
a)
Van de Graaff generator
b)
voltage
c)
xerography
d)
electron-volt
25.

Which is not true: Equipotential lines......

a)

are always continuous and never end

b)

connect the path charge q spontaneously moves toward

c)

connect points where voltage is zero

d)

connect points where no work is done to move a charge q

e)

are perpendicular to E field lines

26.

The ground is often taken to be...

a)

postive

b)

negative

c)

0 V

d)

a capacitor

27.

If a proton is moved from a positive plate to a negative plate then it moves to the plate with....

a)

lower electric potential (V)

b)

higher electric potential (V)

c)

0 V

28.

Electric potential difference is measured in:

a)

V

b)

C

c)

F

d)

N/C

e)

V or J/C

29.

What is the name of the insulator that is between the plates of a capacitor?

a)

polyethylene

b)

dielectric

c)

cabela

d)

permitivity of free space

e)

conductor

30.

What is work done in moving a charge of 4C from one point to another point having potential difference of 5volt

a)

4/5 J

b)

5/4 J

c)

20J

d)

1J

31.

A point charge 2nC is located at origin. What is the potential at (1,0,0)?

a)

12

b)

14

c)

16

d)

18

32.

A point A is at potential +500v and B is a point of potential -500 v the works done by external agent to take a unit positive charge from A to B is

a)

+1000J

b)

-1000J

c)

+500J

d)

-500J

33.

A tin nucleus has charge +50 e if the proton is at a distance of 10-12 m from the nucleus then the potential v at this position is charged on proton= 1.6 x 10-19 C

a)

14.4 x 104 volt

b)

7.2 x 104 volt

c)

7.2 x 108 volt

d)

14.4 x 108 volt

34.

The potential at a point due to an electric dipole will be maximum and minimum when the angles between the axis of dipole and line joining at point to dipole are respectively

a)

900 and 1800

b)

00 and 900

c)

900 and 00

d)

00 and 1800

35.

Three Point charges Q, -2Q and -2Q are placed at the vertices of an equilateral triangle of side r . The work done to increases their separation to 2r is

a)

Zero

b)

12J

c)

20J

d)

40 J

36.

What should be Capacitance of a capacitor capable of storing 1J of energy when potential difference of 100V is applied between the plates

a)

1x10-4F

b)

2x10-4F

c)

3x10-4F

d)

4x10-4F

37.

Which of the following statement is not true

a)

Electrostatic force is a conservative force.

b)

Potential at a point is the work done per unit charge in bringing a charge from infinity to that point in an electric field

c)

Electrostatic force is non-conservative

d)

Potential is the ratio of work to charge.

38.

The expression for Electric potential due to a point charge at a distance 'r' from it is____________

a)

14πϵ 0  q2 r\frac{1}{4\pi\epsilon\ _{0\ }}\ \frac{q^{2\ }}{r}

b)

14πϵ 0  qr\frac{1}{4\pi\epsilon\ _{0\ }}\ \frac{q}{r}

c)

14πϵ 0  q2 r2\frac{1}{4\pi\epsilon\ _{0\ }}\ \frac{q^{2\ }}{r^2}

d)

14πϵ 0  q r2\frac{1}{4\pi\epsilon\ _{0\ }}\ \frac{q\ }{r^2}

39.

Electric potential at a point due to a dipole is

a)

14πεo p⃗.r⃗r3\frac{1}{4πε_o}\ \frac{p⃗.r⃗}{r^3}

b)

14πεo p⃗.r⃗r2\frac{1}{4πε_o}\ \frac{p⃗.r⃗}{r^2}

c)

14πεo p⃗.r⃗r\frac{1}{4πε_o}\ \frac{p⃗.r⃗}{r}

d)

14πεo p⃗.r⃗\frac{1}{4πε_o}\ p⃗.r⃗

40.

A spherical charged conductor has surface density of charge as σ\sigma  . The electric field intensity on its surface is E. If the radius of the surface is doubled, keeping s unchanged, what will be the electric field intensity on the new sphere?

a)

E/2

b)

E/4

c)

2E

d)

E

41.

As shown in Fig. , a dust particle with mass m = 5.0 × 10-9 kg and charge q0 = 2.0 nC starts from rest at point a and moves in a straight line to point b. What is its speed v at point b ?

a)

26m/s

b)

34m/s

c)

46m/s

d)

14m/s

42.

A small sphere with mass 1.2 g hangs by a thread between two parallel vertical plates 5.00 cm apart. The plates are insulating and have uniform surface charge densities +σ+\sigma   and −σ-\sigma  . The charge on the sphere is q = 9 × 10-6 C. What potential difference between the plates will cause the thread to assume an angle of 37° with the vertical as shown in Fig. ?

a)

30V

b)

12V

c)

50V

d)

25V

43.

When a charge of 3 C is moved from infinity to a point X in an electric field, the work done is 15 J. What is the electric potential at X?

a)

45 V

b)

22.5 V

c)

15 V

d)

5 V

44.

Which statement about electric potential at a point must be correct?

a)

The potential is given by the rate of change of electric field strength with distance

b)

the potential is defined as the work done per unit positive charge in moving one electron from the point to infinity

c)

alternative units for electric potential are the joule and the volt

d)

the potential due to a system of point charges is given by the sum of the potentials due to the individual charges

45.

The given diagram shows a pair of large plane parallel conducting plates situated 40 mm apart. The potential difference between the plates is V.


Which of the following is the potential difference between point X and point Y?

a)

15 / 40 V

b)

25 / 40 V

c)

20 / 40 V

d)

40 / 40 V

46.

The terms 'electric field strength', 'electric potential' and 'potential gradient' are often used in discussing electric fields. Which of the following statements about these terms is correct?

a)

Electric field strength at a point is the work done in bringing unit positive charge from infinity to the point

b)

Electric potential and potential gradient are both scalar quantities

c)

The potential gradient at a point is numerically equal to the electric field strength at that point.

d)

Unit potential gradient exists between any two points, if one joule of work is done in transporting one coulomb of charge between the points

47.

A uniform electric field exists between two parallel charged plates 0.02 m apart. The given diagram shows how the potential energy Ep of an electron varies with displacement x from one of the plates.


Which of the following is the force on the electron?

a)

1.2 x 10-33 N

b)

6.0 x 10-32 N

c)

7.5 x 10-17 N

d)

7.5 x 10-15 N

48.

A capacitor discharge circuit of time constant 45 ms includes a capacitor and resistor. The capacitor has a capacitance of 18 µF


What is the resistance of the resistor?

a)

2.5 x 103 Ω

b)

2.5 Ω

c)

0.40 Ω

d)

4.0 x 10-4 Ω

49.

What is the energy given off by a 20V bulb which has 10C passing through it?

a)

200J

b)

2J

c)

0.5J

d)

250J

50.

When lighting happen,25 C charge is transferred from could to the ground and 1.25x1010 J energy is produced. Calculate the potential difference within cloud and the ground in unit Volt

a)

4.00 x 108

b)

2.00 x 108

c)

3.00 x 108

d)

5.00 x 108

51.

A proton ( q = 1.60 x 10-19 C) moves 10.0 cm on a path parallel to the direction of a uniform electrical field of strength 3.0 N/C. What is the electrical potential energy?

a)

4.8 x 10-20 J

b)

1.6 x 10-20 J

c)

-4.8 x 10-20 J

d)

-1.6 x 10-20 J

52.

What will be the electrical potential at a distance of 0.15 m from a point charge of 6.0 µC? (kc = 8.99 x 109 N · m2/C2)

a)

5.4 x 104 V

b)

3.6 x 105 V

c)

2.4 x 106 V

d)

1.2 x 107 V

53.

At what distance from a point charge of 8.0 µC would the electrical potential by 4.2 x 104 V? (kc = 8.99 x 109 N·m2/C2)

a)

0.58 m

b)

0.76 m

c)

1.7 m

d)

2.9 m

54.

At what distance from a point charge of 8.0 µC would the electrical potential by 4.2 x 104 V? (kc = 8.99 x 109 N·m2/C2)

a)

0.58 m

b)

0.76 m

c)

1.7 m

d)

2.9 m

55.

When an electron (e = -1.6 x 10-19 C) moves 0.10 m along the direction of an electric field with a strength of 3.0 N/C, what is the magnitude of the potential difference between the electron's initial and ending points?

a)

4.8 x 10-19 V

b)

0.30 V

c)

0.03 V

d)

30 V

56.

Two point charges of values 3.4 µC and 6.6 µC are separated by 0.20 m. What is the electrical potential energy of this two-charge system?

a)

0.34 J

b)

-0.75 J

c)

1.0 J

d)

-3.4 J

57.

Two protons, each with a charge of 1.6 x 10-19 C, are 2.0 x 10-5 m apart. What is the change in electrical potential energy between the charges?

a)

1.1 x 10-23 J

b)

3.2 x 10-19 J

c)

3.2 x 10-16 J

d)

1.6 x 10-14 J

58.
If 500 J of work are required to carry a 40-C charge from one point to another, the potential difference between these two points is: 
a)
12.5 V 
b)
20,000 V 
c)
0.08 V 
d)
depends on the path 
59.
The potential difference between two points is 100 V. If a particle with a charge of 2 C is transported from one of these points to the other, the magnitude of the work done is: 
a)
200 J
b)
100 J
c)
50 J
d)
2 J
60.

The electric field lines between two oppositely charge plates are mostly...

a)

parallel

b)

curved

c)

0

d)

repelling

e)

drawn from low potential to high potential

61.

Two point charges are separated by a distance of 0.008 m. Charge on point A =-8 C and charge on point B = -7 C.


[k = 9 x 109 Nm2C−2]


What is the electric potential energy between these two charges?

a)

7.9 x 1013 J

b)

5.7 x 1011 J

c)

6.3 x 1013 J

d)

6.3 x 1011 J

62.
Two protons are released from rest, with only the electrostatic force acting. Which of the following statements  is NOT true about them as they move apart? 
a)
Their electric potential energy keeps decreasing.
b)
Their electric potential energy keeps increasing.
c)
Their acceleration keeps decreasing.
d)
Their kinetic energy keeps increasing.
63.
How much kinetic energy does a proton gain if it is accelerated, with no friction, through a potential difference of 1.00 V? The proton is 1836 times heavier than an electron, and e = 1.60 × 10-19 C.
a)
1836 eV
b)
1836 J
c)
1.00 eV
d)
1.60 × 10-19 eV
64.
A +4.0-μC and a -4.0-μC point charge are placed as shown in the figure. What is the potential difference between points A and B? (k = 1/4πε0 = 9.0 × 109 N ∙ m2/C2)
a)
0 V
b)
48 kV
c)
96 kV
d)
48 V
65.

Electrostatic potential energy is recorded in units of electron-Volts (eV). What is equivalent to 1 eV?

a)

1.602×10−19 𝐽

b)

100 𝐽

c)

220 𝐽

d)

0.003 𝐽

66.

What is the electric potential at a distance of 50 cm away from a point charge of +2.0 nC?

ε0 = 8.854 × 10−12 F m−1

a)

3.6 V

b)

36 V

c)

7.2 V

d)

72 V

Similar Resources on Wayground

Remedial Model Questions

70 questions

Remedial Model Questions

quiz

Worksheet

•

University

KIỂM TRA KIẾN THỨC VẬT LÝ 10

65 questions

KIỂM TRA KIẾN THỨC VẬT LÝ 10

quiz

Worksheet

•

10th Grade - University

Electrical Circuits

63 questions

Electrical Circuits

quiz

Worksheet

•

9th Grade - University

Understanding Electricity Concepts

65 questions

Understanding Electricity Concepts

quiz

Worksheet

•

9th Grade - University

Wave Speed and Behaviour

67 questions

Wave Speed and Behaviour

quiz

Worksheet

•

11th Grade - University

TEMA 3 MOV. EN UN PLANO

70 questions

TEMA 3 MOV. EN UN PLANO

quiz

Worksheet

•

University

Review Gas Pressure NP #1-#4

67 questions

Review Gas Pressure NP #1-#4

quiz

Worksheet

•

KG - University

End of Year Review

67 questions

End of Year Review

quiz

Worksheet

•

KG - University