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Question

If you know that the current is in a particular direction, then can you say all the 'balls' are going only in that direction at any point of time?


A

Yes

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B

Not every time, but definitely sometimes.

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C

They move such that they are always going in a direction different from the direction of current.

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D

They move opposite to the direction of current.

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Solution

The correct option is B

Not every time, but definitely sometimes.


When we say that there is a current of balls, we actually mean that the net movement of the balls over a period of time is in the direction of current. The balls, individually, could be moving in any random direction at any given point of time.


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