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Q.

Electric current through a conductor varies with time as I(t) = 50 sin (100πt ). Here I is in amperes and t in seconds. Total charge that passes any point from t=0 to  t=1200s is x×102C,  then x is

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a

8

b

16

c

6

d

4

answer is D.

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Detailed Solution

q=  I  dt=01/20050sin(100πt)

=50100π[cos(100πt)]01/200=0.16C

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