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Fields and their consequences (A-level only)

Fields and their consequences (A-level only)

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Question 164

An electrostatic experiment uses an air-filled parallel-plate capacitor with plate separation ddd. The capacitor is fully charged using a power supply until the electric field strength between the plates is EEE. The capacitor is then completely disconnected and isolated from the power supply.

The plate separation is then increased to 3d3d3d, and a sheet of nylon with a relative permittivity (dielectric constant) of εr=5.0\varepsilon_r = 5.0εr​=5.0 is inserted, completely filling the volume between the plates.

What is the new electric field strength between the plates in terms of EEE?

A

5E3\frac{5E}{3}35E​

B

3E5\frac{3E}{5}53E​

C

E5\frac{E}{5}5E​

D

E15\frac{E}{15}15E​

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Fields and their consequences (A-level only) Questions

  1. A Level
  2. /Physics
  3. /Fields and their consequences (A-level only)

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