What happens to the magnetic field strength inside a solenoid if the number of t

Practice Questions

Q1
What happens to the magnetic field strength inside a solenoid if the number of turns per unit length is increased? (2023)
  1. It decreases
  2. It increases
  3. It remains the same
  4. It becomes zero

Questions & Step-by-Step Solutions

What happens to the magnetic field strength inside a solenoid if the number of turns per unit length is increased? (2023)
  • Step 1: Understand what a solenoid is. A solenoid is a coil of wire that creates a magnetic field when an electric current passes through it.
  • Step 2: Learn about 'turns per unit length.' This means how many loops of wire are in a certain length of the solenoid.
  • Step 3: Know that the magnetic field strength inside a solenoid depends on how many turns of wire there are in a given length.
  • Step 4: Realize that if you increase the number of turns per unit length, you are adding more loops of wire in the same space.
  • Step 5: Understand that more loops of wire mean a stronger magnetic field because the magnetic effects of each loop add together.
  • Step 6: Conclude that if the number of turns per unit length increases, the magnetic field strength inside the solenoid also increases.
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