Moderate

A capacitor can store its energy in its:

Correct answer: C. Electric field

  • A. Magnetic field
  • B. Parallel plate
  • C. Electric field
  • D. Coil

Explanation

Option A: A capacitor does not store energy in its magnetic field. Capacitors are primarily designed to store and release electrical energy through the accumulation and separation of charges on their plates, utilizing the electric field. Magnetic fields are associated with inductors, not capacitors.Option B: This option is partially correct. Capacitors typically consist of two parallel conducting plates separated by a dielectric material. The energy is stored in the electric field created between these plates when the capacitor is charged. So, while the parallel plates play a role in the energy storage process, the actual energy is stored in the electric field.Option C: A capacitor can store its energy in its electric field. When a capacitor is charged, it accumulates electric potential energy in the form of an electric field between its plates. The energy is stored in the electric field as a result of the separation of positive and negative charges on the capacitor plates. The energy is released when the capacitor discharges, and the charges flow from one plate to the other, resulting in a flow of electric current.Option D: A coil, also known as an inductor, stores energy in its magnetic field. Inductors store energy in the form of a magnetic field when a current passes through them. While inductors and capacitors are both components used in electronic circuits, they store energy in different ways. Capacitors store energy in the electric field, while inductors store energy in the magnetic field.A capacitor can store its energy in its electric field.

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About Electrostatics

Electrostatics describes forces between charges through Coulomb's law, electric fields and field intensity, then uses electric potential to measure energy per unit charge. Capacitors store charge and electrical energy, with capacitance depending on geometry and dielectric material, not simply on the amount of charge present.

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