Electric Potential - Questions & Answers | Exam2Win

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1. The electric potential at a point near an isolated positive charge is

A. zero

B. infinity

C. positive

D. negative

Explanation:

2. If the potential difference between two points 2 cm apart in an electric field is 20 V, the electric field intensity between the points will be around

A. 20Vm-1

B. 10Vm-1

C. 30Vcm-1

D. 10Vcm-1

Explanation:

3. The relationship between electric field intensity and electric potential is

A. V = -dE/dX

B. V = dE/dX

C. E = -dV/dX

D. E = dV/dX

Explanation:

4. Two protons in the nucleus of U238 are 610-15m apart. If the charge on proton is 1.610-19 C then their mutual electric potential energy is

A. 38.410-14 J

B. 0.38410-14 J

C. 38410-14 J

D. 3.8410-14 J

Explanation:

5. Electric potential at any point is calculated using a unit positive charge and moving it

A. along the direction of the field

B. against the field

C. perpendicular to the field

D. Inclined to the field

Explanation:

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