Home › CBSE Class 12 (Science) › Physics › Electrostatic Potential and Capacitance › In a field E, the energy per unit volume is give…
In a field E, the energy per unit volume is given by
A(1/2)E²/ε0
B(1/2)ε0E²
Cε0E²
D(1/2)ε0E
Answer & Solution
Correct answer: B. (1/2)ε0E²
The energy density of an electric field in vacuum is half of ε0 times E squared.
Related questions
In a system of several conductors in equilibrium, what is true of their potentials?If the charge on a capacitor is doubled, what happens to the field between its plates?Why is capacitor energy independent of how charge was built up?A charged capacitor is disconnected and joined to an identical uncharged one. What happensA 500 pF capacitor is connected across a 60 V battery. How much energy does it store?What does a non-polar molecule develop when placed in an external electric field?Which pair consists only of non-polar molecules?How can a single isolated conductor act as a capacitor?