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What is the effect of increasing the number of turns in a coil on the induced EM

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Question: What is the effect of increasing the number of turns in a coil on the induced EMF when the magnetic flux changes?

Options:

  1. It increases the induced EMF
  2. It decreases the induced EMF
  3. It has no effect
  4. It makes the induced EMF zero

Correct Answer: It increases the induced EMF

Solution: 

According to Faraday\'s law, the induced EMF is directly proportional to the number of turns in the coil. Therefore, increasing the number of turns increases the induced EMF.

What is the effect of increasing the number of turns in a coil on the induced EM

Practice Questions

Q1
What is the effect of increasing the number of turns in a coil on the induced EMF when the magnetic flux changes?
  1. It increases the induced EMF
  2. It decreases the induced EMF
  3. It has no effect
  4. It makes the induced EMF zero

Questions & Step-by-Step Solutions

What is the effect of increasing the number of turns in a coil on the induced EMF when the magnetic flux changes?
  • Step 1: Understand what a coil is. A coil is a wire wound in a spiral shape.
  • Step 2: Learn about magnetic flux. Magnetic flux is the amount of magnetic field passing through a surface.
  • Step 3: Know what induced EMF is. Induced EMF (Electromotive Force) is the voltage generated in the coil when the magnetic flux changes.
  • Step 4: Familiarize yourself with Faraday's law. Faraday's law states that the induced EMF in a coil is proportional to the rate of change of magnetic flux through the coil.
  • Step 5: Recognize that the number of turns in the coil affects the induced EMF. More turns mean more wire to generate voltage.
  • Step 6: Conclude that if you increase the number of turns in the coil, the induced EMF will also increase when the magnetic flux changes.
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