In the circuit above, The potential across each capacitor...
In the circuit above, The potential across each capacitor is 100V. The total energy stored in the two capacitors is
3.0 x 104J
3.0 x 102J
2.5 x 10-2J
6.0 x 10-3J
Correct answer is C
Energy stored in a capacitor is given by
E = 1/2CV2
But effective capacitance for the parallel arrangement is given by
C = C1 + C2
= 2 + 3
= 5μF = 5 x 10-6 x (100)2
∴E = 1/2CV2
= 1/2 x 5 x 10-6 x 104
2.9 x 10-2J
Similar Questions
Which of the following statements about the pressure in a liquid is NOT correct? It ...
The normal temperature of human body is record at what ranges? ...
Pick out the scalar quantity ...
Calculate the inductance L, of the coil in the circuit diagram shown above ...
Neutrons were discovered by ...
The saturation vapour of a liquid depends on its ...
The instantaneous value of the induced e.m.f as a function of time is ε = εo sin ωt where εo is ...