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Which analogy best describes a capacitor in an electrical circuit? (2020)

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Question: Which analogy best describes a capacitor in an electrical circuit? (2020)

Options:

  1. A sponge soaking up water
  2. A water wheel
  3. A filter
  4. A dam holding back water

Correct Answer: A sponge soaking up water

Exam Year: 2020

Solution: 

A capacitor can be likened to a sponge that stores water, as it stores electrical energy in the form of charge.

Which analogy best describes a capacitor in an electrical circuit? (2020)

Practice Questions

Q1
Which analogy best describes a capacitor in an electrical circuit? (2020)
  1. A sponge soaking up water
  2. A water wheel
  3. A filter
  4. A dam holding back water

Questions & Step-by-Step Solutions

Which analogy best describes a capacitor in an electrical circuit? (2020)
  • Step 1: Understand what a capacitor does. A capacitor stores electrical energy.
  • Step 2: Think about how a sponge works. A sponge absorbs and holds water.
  • Step 3: Compare the two: Just like a sponge holds water, a capacitor holds electrical charge.
  • Step 4: Conclude that the analogy of a sponge is a good way to describe a capacitor.
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