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1/2 ε₀E² represents energy density i.e., energy per unit volume.

1. Force = mass × acceleration
2. Work = Force × displacement
3. Torque = Force × force arm
4. 1/2 ε₀E² represents energy density i.e., energy per unit volume.

Correct answer: 1/2 ε₀E² represents energy density i.e., energy per unit volume.

Solution

The expression 1/2 ε₀E² is the energy density of an electric field, which is the energy stored per unit volume in the field. This is a direct recall fact.

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