 |
| Numerical 08 |
|
| 08. 0.5 F capacitor is placed parallel with 0.75 F capacitor and the combination is joined by 110 V DC source. Calculate the charge from the source and charges on each capacitor. |
| |
| Suggested answer: |
| |
| Capacity of a Capacitor C1 = 0.5 x 10-6 F |
| |
| Capacity of Capacitor C2 = 0.75 x 10-6 F |
| |
| Resultant Capacitance C if connected parallel is |
| |
| C = C1 + C2 = (0.5 + 0.75) x 10-6 F |
| |
| = 1.25 x 10-6 F |
| |
| V = 110 V |
| |
 |
| |
| = 1.25 x 10-6 x 110 |
| |
| = 137.5 x 10-6 C |
| |
| Charge on capacitor C1 is q1 = C1 x V |
| |
| = 0.5 x 10-6 F x 110 V |
| |
| = 55 x 10-6 C |
| |
| Charge on Capacitor C2 is q2 = C2 x V |
| |
| = 0.75 x 10-6 F x 110 V |
| |
| = 82.5 x 10-6 C |
| |
