Three capacitors of capacitance 2μF, 4μFand 8μF ...
Three capacitors of capacitance 2μF, 4μFand 8μF are connected in parallel and a P.D of 6V is maintained across each capacitor, the total energy stored is?
2.52 x 10-6J
6.90 x 10-6J
2.52 x 10-4J
6.90 x 10-4J
Correct answer is C
C = C1 + C2 + C3
= 2 + 4 + 8 = 14μF
V = 6V
Energy = 1/2CV2
1/2 x 14 x 10-6 x 62
= 2.52 x 10-4 J
Similar Questions
A cube made of metal of linear expansivity α is heated through a temperature θ. If...
In the formation of sea breeze, wind blows from? ...
A platinum-resistance thermometer has a resistance of 5Ω at 0°C and 9Ω at l00&d...
Calculate the inductance of an inductor whose reactance is one ohm at 50 Hz. ...
An a.c. generator can be converted into a d.c. generator by replacing ...
Which of the following units is the S.I. unit of heat capacity? ...