Questions
A 10 μF capacitor is charged by.a battery of emf 100 V. The energy drawn from the battery and the energy stored in the capacitor, are respectively :
a
0.10 J and 0.05 J
b
0.05 J and 0.10 J
c
1.0 mJ and 0.5 mJ
d
0.05 J and 0.05 mJ
detailed solution
Correct option is A
Charge supplied by battery Q = CV = 10 x 10-6 x 100 =10-3CEnergy drawn from battery= QV = (10-3) (100) = 0.1 JEnergy stored in capacitor = 12CV2=QV2=0.0.5 JTalk to our academic expert!
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