What is the effect of increasing the speed of a magnet moving through a coil?

Practice Questions

Q1
What is the effect of increasing the speed of a magnet moving through a coil?
  1. Induced current decreases
  2. Induced current increases
  3. No change in induced current
  4. Induced current becomes zero

Questions & Step-by-Step Solutions

What is the effect of increasing the speed of a magnet moving through a coil?
  • Step 1: Understand that a magnet has a magnetic field around it.
  • Step 2: Know that a coil is made of wire and can detect changes in magnetic fields.
  • Step 3: When a magnet moves through the coil, it changes the magnetic field inside the coil.
  • Step 4: The faster the magnet moves, the quicker the magnetic field changes.
  • Step 5: This change in the magnetic field is called 'magnetic flux.'
  • Step 6: According to Faraday's law, a change in magnetic flux induces an electric current in the coil.
  • Step 7: Therefore, increasing the speed of the magnet increases the rate of change of magnetic flux.
  • Step 8: As a result, a faster magnet creates a stronger induced current in the coil.
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