Which of the following is correct statement :

Equipotential lines are always perpendicular to the electric field

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Work done for moving a charge along the conducting surface (closed and containing charge) very close to it may be negative or positive

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Electric field may cross each other

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None of the above

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Solution

The correct option is A Equipotential lines are always perpendicular to the electric field
There is no potential gradient along any direction parallel to the surface, and no electric field is parallel with the surface, This means electric field are always at right angle to the equipotential surface.

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Similar questions

Out of the given statements which of the following are true :

A) Work done in moving a charge on equipotential surface is zero.

B) Electric lines of force are always normal to equipotential surface.

C) When two like charges are brought closer, the electrostatic potential energy of the system is decreased.

D) Electric lines of force converge at positive charge and diverge at negative charge.

Choose the wrong statement

a) Work done in moving a charge on equipotential surface is zero.

b) Electric lines of force are always normal to equipotential surface.

c) When two like charges are brought nearer, then electrostatic potential energy of the system is decreased.

d) Electric lines of force diverge at positive charge and converge towards negative charge.

y = x

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