The current in a wire varies with time according to the equation I = 4 + 2t, where I is in ampere and t is in sec. The quantity of charge which has passed through a cross-section of the wire during the time t = 2 sec to t = 6 sec will be
Text Solution
Verified by ExpertsThe correct answer is:
C
Let 
be the charge which passes in a small interval of time 
. Then
or 
On integrating, we get
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