WorksheetsElectric field and electric potential
Total questions: 10
Worksheet time: 8mins
The graph shows the electric potential some distance away from a conductor. What is the graph of the electric field around that conductor?
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
3.6 V
36 V
7.2 V
72 V
The radius (distance from nucleus) of a hydrogen atom is 120 pm. What is the electric field strength at that distance from the nucleus?
e = 1.60 × 10−19 C
ε0 = 8.854 × 10−12 F m−1
1.00 × 10−10 N/C
1.00 × 10−11 N/C
1.30 × 10−10 N/C
1.30 × 10−11 N/C
An electric field strength of 10 N C−1 is measured around a point charge at a distance of 10 cm. What is the electric field strength around the same point charge at a distance of 20 cm away?
2.5 N C−1
5.0 N C−1
20 N C−1
40 N C−1
At point X which distance is r1 from a point charge, the electric potential is VX. At point Y which distance is r2 from the same point charge, the electric potential is VY.
How much work is done to bring a proton (with a charge of e) from point X to point Y in joules?
e(VX−VY)
e(VY−VX)
e(VX−VY)/r
e(VY−VX)/r
What is the electric field strength and electric potential inside a hollow charged conductor sphere of radius r and charge q at a distance of x from the centre of sphere?
0, kq/r
0, kq/x
kq/r2, kq/r
kq/x2, kq/x
The work required to move a charge from infinity to a point in an electric field is called ...
electric field strength
electric potential
electric potential energy
electric force
At what distance is the electric potential around a negative point charge is at its greatest value?
0
∞
radius of the charge
cannot be determined
Potential graph between two point charges, Q1 dan Q2, are shown. Which of the following statements is true?
Q1 is positive, Q2 is negative
Q1 is positive, Q2 is positive
Q1 is negative, Q2 is positive
Q1 is negative, Q2 is negative
Potential graph between two point charges, Q1 dan Q2, are shown. At what point along r axis, is electric field strength = 0?
1
2
3
cannot be determined
