wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Topic 3 (sem 2): Direct Current

Total questions: 40

Worksheet time: 56mins

Name
Class
Date
1.

If the resistor are connected in parallel in a circuit which one has the highest current?

R1 < R2 < R3 < R4 R_1\ <\ R_{2\ }<\ R_3\ <\ R_4\  

a)

R1R_1  

b)

R2R_2  

c)

R3R_3  

d)

R4R_4  

2.

If the length of the wire is doubled and its area of cross section is decreased to half, then its resistance

a)

Increased by 4 times

b)

Increased by 2 times

c)

will become half of its initial value

d)

Remains the same

3.
What is current measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
4.
What is resistance measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
5.
What is Resistance?
a)
The flow of electrons
b)
Electric potential difference
c)
A battery
d)
The ability to reduce the flow of electrons
6.
If the Voltage is increased and the resistance stays the same, Current will
a)
Increase
b)
Decrease
c)
Stay the same
d)
X
7.
Factor which does not affect the resistance
a)
Type of material
b)
Length of material
c)
Mass of the material
d)
Area of the material
8.

What happens to the resistance of a resistor when the temperature is increased?

a)

Increases

b)

decreases

c)

stay the same

d)

vary randomly

9.
which has the highest current flowing through it?
a)
R1
b)
R2
c)
R3
d)
All the same
10.

For the graph shown in the figure, what physical quantity does the slope of the graph represent for ohmic material?


a)

power

b)

resistivity

c)

resistance

d)

1/(resistance)

11.

electromotive force is______?

a)

work done to by the source to drive a unit charge around a complete circuit.

b)

amount of light produced by a bulb

c)

amount of heat produced by a resistor

d)

amount of force produced by an electric motor

12.

How do you calculate total resistance in a parallel circuit?

a)

R1 + R2 + R3

b)

R1 - R2 - R3

c)

1/R1 +1/R2 + 1/R3 = 1/RT

d)

R1 = R2 = R3

13.

How to you calculate the total resistance in a series circuit?

a)

R1 + R2+ R3

b)

R1 - R2 - R3

c)

1/R1 + 1/R2 + 1/R3

d)

R1 = R2 = R3

14.

The SI unit for Electromotif force (emf) is

a)

JC-1

b)

VA-1

c)

ΩA-1

d)

VC-1

15.

Which circuit diagram represents the correct way to measure the current in a resistor?

a)
b)
c)
d)
16.

Which circuit can be used to determine the electromotive force of a battery?

a)
b)
c)
d)
17.
In a parallel circuit which of the following is the same value throughout the circuit?
a)
Voltage
b)
Current
c)
Resistance
d)
Charge
18.
This is an example of a _______ circuit
a)
open
b)
series
c)
parallel
d)
square
19.
This is an example of a ______ circuit
a)
Series
b)
Parallel
c)
Open
d)
Dihexihedral
20.
what is this symbol for?
a)
light bulb
b)
switch
c)
battery
d)
resistor
21.

Conventionally, current is described as flowing from the ................ terminal of a battery to the ................ terminal.

a)

Negative.....negative

b)

Negative....positive

c)

Positive......negative

d)

Positive....positive

22.

Effective resistance increases when in .............. circuit.

a)

Parallel

b)

Series

c)

Open

d)

Closed

23.

Effective resistance decreases when in .............. circuit.

a)

Parallel

b)

Series

c)

Open

d)

Closed

24.

Current entering and leaving a point in a circuit should be

a)

equal

b)

decreasing

c)

increasing

d)

variable

25.

"The total current in a parallel circuit equals the sum of the individual branch currents."

a)

Ohm's Law

b)

Kirchhoff's Voltage Law

c)

Kirchhoff's Current Law

d)

Bolen's Law

26.

"The sum of all voltage drops in a series circuit equals the total applied voltage." This is know as what?

a)

Ohm's Law

b)

Kirchhoff's Voltage Law

c)

Kirchhoff's Current Law

d)

Bolen's Law

27.

For the circuit shown, the resistances are R1 > R2 > R3. What is true about the current through each resistor?

a)

I1 = I2 = I3

b)

I1 > I2 > I3

c)

I1 > I3 > I2

d)

I1 < I3 < I2

28.

Kirchhoff's 1st law deals with

a)

current in circuit

b)

voltage in circuit

c)

e.m.f in circuit

d)

voltage in circuit and e.m.f in circuit

29.

Power, P equals ...

a)

VI\frac{V}{I}

b)

ERER

c)

I2RI^2R

d)

V2RV^2R

30.
Watts is the same as...
a)

Joules per second

b)

Voltage per second

c)

Current per second

d)

Resistor per second

31.

Which one is true about potential divider

a)

It consists one fixed resistor

b)

It's resistors are connected in parallel to suply

c)

It's resistors connected in series to suply

d)

It's resistors connected in series and parallel to suply

32.

A potentiometer is a device used for

a)

measuring potential energy

b)

measuring resistance

c)

comparing potential difference

d)

comparing potential energy

33.

Factor which does not affect the resistance

a)

Type of material

b)

Length of material

c)

Mass of the material

d)

Area of the material

34.

What is internal resistance?

a)

The resistance inside the cell that increases with more current drawn from the cell

b)

The resistance inside the cell that decreases with more current drawn from the cell

c)

The resistance inside the cell that remains constant as the current drawn from the cell changes

d)

The resistance inside each component which increases as more resistances are added in series

35.

What is the principle of potentiometer ?

a)

V is proportional to L, when steady current flows through a wire of uniform area of cross section at constant temperature

b)

Deflection in G is proportional to current

c)

Resistance is proportional to length

d)

Resistance is inversely proportional to area of cross section

36.

What is the use of a potentiometer? (can be more than 1)

a)

1. comparison of emf's of two primary cells

b)

2. finding internal resistance of a cell

c)

3. can be used as a variable resistor

d)

Finding current & Voltage in complex circuit

37.

ρ\rho has a unit of ..........

a)

Ω\Omega

b)

Ωm\Omega m

c)

Ωm2\Omega m^2

d)

Ωm3\Omega m^3

38.

we use  ρlA\frac{\rho l}{A}  to find .........

a)

PP  

b)

II  

c)

ρ\rho  

d)

RR  

39.

R1 has much higher resistance than R2. The Potential difference (p.d) across R1 will be...?

a)

lower than the p.d across R2

b)

the same as the p.d across R2

c)

greater than the p.d across R2

d)

Not enough information to say

40.

Which statement is FALSE about electricity?

a)

Electric current is defined as the rate of charge flow

b)

The resistance will increase when the temperature increase

c)

The electric current decreases when the resistance increases

d)

The resistivity increases when the length of the conductor increases

Similar Resources on Wayground

Listrik dasar

40 questions

Listrik dasar

quiz

Worksheet

•

University

Physics, Motion in One Dimension Review

45 questions

Physics, Motion in One Dimension Review

quiz

Worksheet

•

9th Grade - University

1-D Kinematics Review

40 questions

1-D Kinematics Review

quiz

Worksheet

•

9th Grade - University

Understanding Energy, Work,and Simple Machines

45 questions

Understanding Energy, Work,and Simple Machines

quiz

Worksheet

•

9th Grade - University

Topic 1: Physical quantities and measurement (2022)

35 questions

Topic 1: Physical quantities and measurement (2022)

quiz

Worksheet

•

12th Grade - University

Midterm Exam_Intervention to Physics

35 questions

Midterm Exam_Intervention to Physics

quiz

Worksheet

•

University

Bio Stems 1, 2 & 3

45 questions

Bio Stems 1, 2 & 3

quiz

Worksheet

•

9th Grade - University

Energy

35 questions

Energy

quiz

Worksheet

•

KG - University