Question

8)
When electric field (E) is applied to the ends of
a conductor, the free electron starts moving in
direction :
A) similar to E
B) opposite to E
C) perpendicular to E
D) cannot be predicted​

Answer 1

when electric field (E) is applied to the ends of a conductor, the free electron starts moving in the direction ...

(a) similar to E

(b) opposite to E

(c) perpendicular to E

(d) cannot be predicted.

answer : option (b) opposite to E

explanation : we know, electric field acts in the direction of force that would be on a positive charge.but if a negative is taken in the electric field, the electric force acts just opposite in the direction of electric field.

    hence, when electric field is applied to the ends of a conductor, the free electron starts moving in the direction opposite to E.

therefore the correct option is (b) opposite to E.