Question

If energy stored by capacitor C2 is 40 ), then charge stored by capacitor C, as shown in the figure is (C = 10 uF)​

Answer 1

Answer:

Ans. 20 micro coulomb

1. equivalent capacitance of parallel combination of two capacitors is 2C

2. since then 2C is in series with another capacitor C of Capacitance 2C, charge is same

3. hence charge on each parallel capacitor C1 and C3 is 40/2 = 20 micro joule

4. V in each parallel capacitor is 2 Volts

5. Charge stored in C1 = 1/2 C V^2= 20 micro coulomb