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WorksheetsElectric Potential
Total questions: 25
Worksheet time: 31mins
In this picture, the work done by the Electric field on the positive test charge is
positive
negative
zero
perpendicular to the displacement
If the test charge q0 has a charge of 3.2 nC, and it is displaced 3 cm, and the electric field is 30,000 N/C, what is the work done by the Electric field?
2.88 x 10-4 J
2.88 x 10-5 J
2.88 x 10-6 J
2.88 x 10-7 J
For the system consisting of the test charge and the metal plates, at what instance is the Electric Potential Energy of the system highest?
When the test charge is at point A
When the test charge is at point B
The electric potential energy is the same at A and B
When the electric field disappears
What happens to the Electric Potential Energy of the system as the test charge moves from point A to B?
The EPE increases
The EPE decreases
The EPE stays the same
If the Electric Field does 100 J of work to move a test charge from point A to B, then what is the change in Electric Potential Energy of the test-charge metal plates system?
100 J
-100 J
0 J
needs more information
As a positive test charge moves from C to D, the system gains Electric Potential Energy. Which metal plate is positive?
green plate
black plate
both plates are positive
both plates are negative
A negative test charge, when placed in point C, naturally accelerates towards point D. What is the direciton of the Electric Field?
East
West
North
South
The electric potential is
a property of a test charge
a property of a source charge
a property of space
the energy of a charged object
To start finding the electric potential difference (ΔV) between points G and H,
you need to put a positive test charge at G
you need to put a negative test charge at G
you need to put any signed charge at G
you need to put a negative test charge at H
Without a test charge, the electric potential at points G and H won't exist.
true
false
an electric potential at a point in space exists if:
there is a test charge at that point in space
there is a source charge at that point in space
there is a source charge/s nearby
electric potentials never exist in space.
Which is the correct formula for electric potential difference?
ΔV = qoΔEPE
ΔV =qoΔEPE
ΔV =ΔEPEqo
ΔV = ΔEPE − qo
In the formula ΔV = ΔEPE/qo, qo
must be a positive test charge
must be a negative test charge
can be a positive or a negative test charge
must be a proton
Since a positive test charge gains EPE when it moves from B to A, we say that
point A has a higher electric potential than point B
point B has a higher electric potential than point A
point A and point B have the same electric potential
A proton moves from A to B. If the total work done by the electric field on the proton is 1.6 x 10-18 J, then how many volts higher is point A than point B?
10 volts higher
100 volts higher
-10 volts higher
-100 volts higher
At which of the following points is electric field the strongest?
A
B
C
D
The electric field is the same at all points
Points in space that are closer to a more positive region have a (higher/lower) electric potential than points in space closer to a more negative region.
higher
lower
it doesn't matter
The two points shown are equidistant from the top charged metal plate. Which point has the higher electric potential
point A
point B
they have the same electric potential
Point B and C are equidistant from the lower charged metal plate. Which of the following statements is true?
ΔVAB < ΔVAC
ΔVAB > ΔVAC
ΔVAB = ΔVAC
ΔVAB = ΔVBC
If VB - VA = 40 V, then which of the following statements is true?
The bottom plate is positive
The bottom plate is negative
The electric potential at point A is higher than at point B
If VB - VA = 30 V, and a 3.0 μC test charge moves from point B to point A, and the two plates are separated by 3 cm, then what is the magnitude of the Electric Field between the plates?
100 N/C
500 N/C
800 N/C
1000 N/C
The electric potential due to a source point charge can be solved using which formula?
V = kq1q2/r2
V = kqs/r2
V = kqs/r
V = qsE
In a Cartesian plane, qs = 2 nm is fixed at point (3 m, 0 m). Find the electric potential it produces at point (0 m, 3 m).
3.24 V
4.24 V
5.24 V
6.24 V
Which point has the higher electric potential?
point A
point B
both have equal electric potentials
If qs = 3.0 x 10-8 C and located at (3 m, 0 m), and a test charge q = 2.78 x 10-11 C moves from point B to point A, by how much will the electric potential energy of the proton change?
-9 x 10-9 J
9 x 10-9 J
10 x 10-10 J
-10 x 10-10 J
