A condenser is charged to a potential difference of 200 volts as a result of which it gains charge of 0.1 coulomb. When it is charged then the energy released will be :
1 J
20 J
2 J
10 J

Question

A condenser is charged to a potential difference of 200 volts as a result of which it gains charge of 0-1 coulomb- When it is charged then the energy released will be -1 J20 J2 J10 J

Toppr Admin · Accepted Answer

The expression of energy released is U-12CV2as Q-CV -xA0- thus- U-12CV-V-12QV-12-xD7-0-1-xD7-200-10J

A condenser is charged to a potential difference of 200 volts as a result of which it gains charge of 0.1 coulomb. When it is charged then the energy released will be :1 J20 J2 J10 J

The expression of energy released is U=12CV2as Q=CV thus, U=12CV.V=12QV=12×0.1×200=10J

A condenser is charged to a potential difference of 200 volts as a result of which it gains charge of 0.1 coulomb. When it is charged then the energy released will be :
1 J
20 J
2 J
10 J

The expression of energy released is $U = \frac{1}{2} C V^{2}$
as $Q = C V$ thus, $U = \frac{1}{2} C V . V = \frac{1}{2} Q V = \frac{1}{2} \times 0.1 \times 200 = 10 J$