In a generator, if the speed of rotation is doubled, what happens to the induced

Practice Questions

Q1
In a generator, if the speed of rotation is doubled, what happens to the induced EMF?
  1. It doubles
  2. It halves
  3. It remains the same
  4. It becomes zero

Questions & Step-by-Step Solutions

In a generator, if the speed of rotation is doubled, what happens to the induced EMF?
  • Step 1: Understand what EMF means. EMF stands for Electromotive Force, which is the voltage generated by the generator.
  • Step 2: Know that the induced EMF in a generator depends on how fast the generator is spinning.
  • Step 3: Remember the relationship: if you increase the speed of rotation, the induced EMF increases.
  • Step 4: If the speed of rotation is doubled, it means the generator is spinning twice as fast.
  • Step 5: Since the induced EMF is directly proportional to the speed, doubling the speed will also double the induced EMF.
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