A capacitor of capacitance 50 μ F is charged to 10 volts. Its energy is equal to

Question

A capacitor of capacitance 50 μ F is charged to 10 volts. Its energy is equal to (A) 2.5×10-3 jouloes (B) 2.5×10-4 jouloes (C) 5×10-2 jouloes (D) 1.2×10-8 jouloes

Tardigrade Admin · Accepted Answer

E = (1/2) CV2 = (1/2) × 50 × 10-6 × (10)2 J = 2.5 × 103 J.

Q. A capacitor of capacitance $50 μ F$ is charged to $10 v o lt s$ . Its energy is equal to

$2.5 \times 1 0^{- 3}$ jouloes

$2.5 \times 1 0^{- 4}$ jouloes

$5 \times 1 0^{- 2}$ jouloes

$1.2 \times 1 0^{- 8}$ jouloes

$E = \frac{1}{2} C V^{2} = \frac{1}{2} \times 50 \times 1 0^{- 6} \times (10)^{2}$ J = 2.5 $\times 1 0^{3}$ J.

Q. A capacitor of capacitance 50μF is charged to 10volts. Its energy is equal to

2.5×10−3 jouloes

2.5×10−4 jouloes

5×10−2 jouloes

1.2×10−8 jouloes