Loss of energy in redistribution of charge based numericals | class 12 physics

Loss of energy in redistribution of charge based numericals | class 12 physics | advguruji

Q1.

Two isolated spherical conductors having radii 5 cm and 10 cm. They have charges of 12nC and -3nC respectively. Find the charges after they are connected by a conducting wire. Also, find the common potential after redistribution.

Ans. 3 nC, 6 nC, 540V

Q2.

Two parallel plate capacitors A and B having capacitance of 1μF and 5 μF are charged separately to the same potential of 100V. Now, the positive plate of A is connected to the negative plate of B, and the negative plate of A is connected to the positive plate of B. Find the final charges on each capacitor.

Ans. (200/3 μC), (1000/3) μC

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