capacitor is a perfect insulator for
Correct answer: A. DC
- A. DC
- B. AC
- C. Both DC and AC
- D. rapidly fluctuating current
Explanation
Direct current (DC) cannot flow through a capacitor because a capacitor blocks the flow of steady-state currents. In a capacitor, charges accumulate on the plates, creating an electric field that opposes the further flow of DC. Once the capacitor is charged, it acts as an open circuit to DC.
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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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