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Question

If a charge of 0.8 C flows through a conductor in 4 seconds, is the amount electric current that flows through it.
  1. 0.5 A
  2. 0.2 A
  3. 0.25 A
  4. 0.01 A


Solution

The correct option is B 0.2 A
If a charge q flows across any cross-section of a conductor in time t, then the current I, through the cross-section is given by
I=qt
Here q = 0.8 C and t = 4 seconds
Therefore, I=0.84=0.2 Ampere

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