📚 Learning Guide
Electric Field Induction Extension
medium

Which of the following statements correctly describe the relationship between electric field strength, distance between charged plates, and capacitance? Select all that apply.

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Choose the Best Answer

A

Increasing the distance between charged plates decreases the electric field strength.

B

Decreasing the distance between charged plates increases capacitance.

C

The electric field strength is directly proportional to the distance between the plates.

D

Capacitance is inversely proportional to the distance between the plates.

E

Increasing the distance between charged plates has no effect on the charge flow.

Understanding the Answer

Let's break down why this is correct

Answer

The electric field between two parallel plates is the voltage divided by the distance, so a larger spacing makes the field weaker for the same voltage. Because the capacitance of a parallel‑plate capacitor equals the permittivity times the area divided by the separation, a bigger gap lowers the capacitance. Thus, increasing the distance reduces both the field strength (for fixed voltage) and the capacitance, while decreasing the distance does the opposite. For example, if you double the plate separation, the field halves and the capacitance is cut in half, assuming the plate area stays the same.

Detailed Explanation

When the plates are farther apart, the electric field becomes weaker, because the same voltage is spread over a longer distance. Other options are incorrect because The idea that the field grows with more distance mixes up distance and field; Thinking that distance never changes charge flow ignores that the field guides the motion.

Key Concepts

Electric Field
Capacitance
Charge Distribution
Topic

Electric Field Induction Extension

Difficulty

medium level question

Cognitive Level

understand

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