Q. Energy density of a capacitor is given by

संधारित्र का ऊर्जा घनत्व किसके द्वारा दिया जाता है?

A
Q²/C
प्रश्न²/सी
B
½ε₀E²
C
C²/Q
सी²/क्यू
D
V²C
वी²सी

Explanation

Energy density is energy stored per unit volume in an electric field:

u=12ε0E2u = \frac{1}{2} \varepsilon_0 E^2

Where:

  • ε0\varepsilon_0 = permittivity of free space

  • EE = electric field between plates

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