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JEE Main202228 Jun 2022Evening ShiftPhysicsCapacitanceActual

A capacitor C 1 of capacitance 5 μ F is charged to a potential of 30 V using a battery. The battery is then removed and the charged capacitor is connected to an uncharged capacitor C 2 of capacitance 10 μ F as shown in figure. When the switch is closed charge flows between the capacitors. At equilibrium, the charge on the capacitor C 2 is _____ μ C .

Correct answer

0

Step-by-step solution

The initial charge on the 5   μF capacitor will be q = C V = 150   μC . If the charge on the 10   μF capacitor is q after the key is closed then, 150 - q 5 = q 10 ⇒ q = 100   μC

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