5 x 104 J
4 x 102 J
4 x 10-3 J
5 x 10-4 J
Correct answer is D
The energy stored in a given capacitor is given by
E = 1/2 CV2 = 1/2 QV = 1/2Q2/C
Where C = the capacitance of the capacitor
Q = charge carried by the capacitor
V = p.d across the plates of the capacitor thus from the data given, C = 10μF
= 10 x 10-6F
Q = 100μc = 100 x 10-6C
∴ Energy stored = 1/2 Q2/C
= | 1 |
| |||
2 |
= | 1 |
| |||
2 |
Which of the following is/are characteristics of sound? I. Pitch II. Loudness III. Quality IV....
A charge of 4.6×10−5C is placed in an electric field of intensity \(3.2 × 10^4\...
A body executing a simple harmonic motion has an angular velocity of 22 radians per second. If ...
The colours seen on soap bubbles are due to ...
An electric lamp rated 120W is used on a 240Vrms, calculate the resistance of its filament ...