Question

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

• A. Yes
• B. Not every time, but definitely sometimes.
• C. They move such that they are always going in a direction different from the direction of current.
• D. They move opposite to the direction of current.

Answer 1

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.