Question

Work done to move 1μC of charge from one point to another point on the surface of an equipotential surface like conductor is *

(a) Zero

(b) 1V

(c) 2V

(d) 3V​

Answer 1

Answer:

a).Zero

Explanation:

As Everywhere in an equipotential surface,the Potential difference between any point is equal to zero.So is the work done equals zero

Answer 2

Answer:

The work done is Zero (option a).

Explanation:

First of all, we need to understand the meaning of equipotential surface.

An equipotential surface is one having all the collection of points in the space which are at the same potential. In other words, any surface with the same electric potential is termed an Equipotential surface.

• The electric field is always perpendicular to an equipotential surface.
• Two equipotential surfaces can never intersect.
• The direction of the equipotential surface is from high potential to low potential.

• For a point charge, the equipotential surface is a sphere,
• For a line charge, it is a cylinder
• and for a uniform electric field, the equipotential surfaces are planes that are perpendicular to the direction of the field.

The work done is moving a charge from one point to another in an equipotential surface is Zero.

Let's say the charge 1 micro coulomb is moved from point 'A' to point 'B' in an equipotential surface.

As potential at those points is the same i.e. $V_A=V_B=V$.

So work done:-  $W=q(V_A-V_B)=1(V-V)=0$.

Therefore the solution is Zero.