RRB Assistant Loco Pilot and Technician Model Paper 3 with solutions

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Question : 57 of 100

Marks: +1, -0

When no current is passed through a conductor,

the free electrons do not move
the average speed of a free electron over a large period of time is not zero
the average velocity of a free electron over a large period of time is zero
the average of the velocities of all the free electrons at an instant is non zero

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