A direct current cannot pass through a parallel plate capacitor because
PHYSICS
WAEC 2023
A direct current cannot pass through a parallel plate capacitor because
- A. the plates are non-conducting.
- B. the dielectric between the plates is non-conducting.
- C. there is a leakage of charge from the plates.
- D. the plates have equal but opposite charges.
Correct Answer: B. the dielectric between the plates is non-conducting.
Explanation
In a parallel plate capacitor, two conductive plates are separated by a dielectric material (usually an insulator). When a voltage (potential difference) is applied across the plates, it creates an electric field between them, which stores electrical energy in the form of electric potential. The dielectric material between the plates is a non-conducting material, which means it does not allow the flow of electric current. Therefore, in a DC circuit, where current is the flow of charge over time, current cannot flow through the dielectric. Instead, the dielectric serves to store energy in the electric field between the plates without allowing the passage of charge.
Post an Explanation Or Report an Error
If you see any wrong question or answer, please leave a comment below and we'll take a look. If you doubt why the selected answer is correct or need additional more details? Please drop a comment or Contact us directly. Your email address will not be published. Required fields are marked *