Question

Question 9

Name the following unit of energy: the change in electric potential energy as an electron moves through a potential difference of one volt.

Joule (J)

Volt (V)

Electron volt (eV)

Watt (W)

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question 10

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Consider two charged particles situated as follows: One charge –2q is located on the y axis at a distance d from the origin, and the other charge –q is located on the x axis at a distance 2d from the origin. What is the total electric potential at the origin?

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–2kq/d

–kq/(2d)

–5kq/(2d)

–kq/d

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Question 13

Every point on an equipotential surface

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is at zero electric potential.

is a a positive electric potential.

is at a negative electric potential.

is at the same electric potential.

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Question 14

Which of the following statements concerning equipotential surfaces is true?

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Electric field lines are directed parallel to these surfaces.

The electric potential on one equipotential surface is equal to that on all other equipotential surfaces.

The net work done by the electric force is zero when moving along an equipotential surface.

The net work done by the electric force in moving a charge from one equipotential surface to another is zero.

Answer 1

the net work done by the electric force in moving a charge from one equipotential surface to another is zero .

This is the false statement because here charge move from one potential surface to other hence even though both surface at equipotential the volatge between both the surface is different hence work done happen .