Question

An electric field stored between capacitor plates demonstrates which fundamental property of the electric field?

Options

• The field is a real physical entity capable of storing measurable energy

• The field propagates at velocities exceeding the speed of light

• The field can only exist in the presence of moving charges

• The field exerts no force on any test charge placed between the plates

Answer 1

The electric field between capacitor plates stores electrical potential energy that can be calculated and measured. This energy storage demonstrates that the electric field is not merely a mathematical abstraction but a real physical entity with tangible properties. The energy stored is related to the field strength and the geometry of the capacitor, proving that fields have genuine physical significance independent of whether they are static or time-varying.