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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Two capacitors A and B with capacities 3μF and 2μF are charged to a potential difference of 100V and 180V, respectively. The plates of the capacitors are connected as show in figure with one wire of each capacitor free. The upper plate of A is positive and that of B is negastive. An uncharged 2μF capcitor C with lead wires falls on the free ends to complete the circuit. Calculate a. the final charge on the three capacitors. b. the amount of electrostatic energy stored in the system before and after completion of the circuit.

Two capacitors A and B with capacities 3μF and 2μF are charged to a potential difference of 100V and 180V, respectively. The plates of the capacitors are connected as show in figure with one wire of each capacitor free. The upper plate of A is positive and that of B is negastive. An uncharged 2μF capcitor C with lead wires falls on the free ends to complete the circuit. Calculate a. the final charge on the three capacitors. b. the amount of electrostatic energy stored in the system before and after completion of the circuit.

1 2 3% A body cools from 60∘C to 50∘C in 10 minutes . If the room temperature is 25∘C and assuming Newton's law of cooling to hold good Five identical conducting plates the temperature of the body at the end of the next 10 minutes will be Two capacitors A and B with capacities 3μF and 2μF are charged to a potential difference of 100V and 180V