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A loop of wire is placed in a uniform magnetic field. What happens if the magnet

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Question: A loop of wire is placed in a uniform magnetic field. What happens if the magnetic field strength is increased?

Options:

  1. Induced current flows in the loop
  2. No effect on the loop
  3. The loop will heat up
  4. The loop will move

Correct Answer: Induced current flows in the loop

Solution: 

According to Faraday\'s law of electromagnetic induction, a change in magnetic field strength induces an electromotive force (EMF) in the loop, causing a current to flow.

A loop of wire is placed in a uniform magnetic field. What happens if the magnet

Practice Questions

Q1
A loop of wire is placed in a uniform magnetic field. What happens if the magnetic field strength is increased?
  1. Induced current flows in the loop
  2. No effect on the loop
  3. The loop will heat up
  4. The loop will move

Questions & Step-by-Step Solutions

A loop of wire is placed in a uniform magnetic field. What happens if the magnetic field strength is increased?
  • Step 1: Understand that a loop of wire is placed in a magnetic field.
  • Step 2: Know that a magnetic field has strength, which can change.
  • Step 3: Recognize that when the strength of the magnetic field increases, it creates a change in the magnetic environment around the loop.
  • Step 4: Remember Faraday's law, which states that a change in magnetic field can induce an electromotive force (EMF) in the wire loop.
  • Step 5: Realize that this induced EMF causes electric current to flow through the loop of wire.
  • Electromagnetic Induction – The process by which a change in magnetic field strength induces an electromotive force (EMF) in a conductor.
  • Faraday's Law – A principle stating that the induced EMF in a closed loop is proportional to the rate of change of the magnetic flux through the loop.
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