Magnetism and electromagnetismQuestion 201 of 1506

The current in a large coil is rising. How does the coil behave in the circuit?

  1. It acts as a load and stores energy
  2. It acts as a source and gives energy back
  3. It acts as a short with no voltage drop
  4. It acts as a resistor and makes only heat
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Correct answer: It acts as a load and stores energy

A coil with rising current drops a voltage that opposes the current. It takes in energy and stores it in its magnetic field.

Source: Lessons in Electric Circuits I: DC (Kuphaldt), 15.1: Magnetic Fields and Inductance

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Questions last reviewed: 18 October 2026