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

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Question: What happens to the magnetic field strength inside a solenoid if the number of turns per unit length is increased? (2023)

Options:

  1. It decreases
  2. It increases
  3. It remains the same
  4. It becomes zero

Correct Answer: It increases

Exam Year: 2023

Solution: 

The magnetic field strength inside a solenoid is directly proportional to the number of turns per unit length. Therefore, if the number of turns per unit length is increased, the magnetic field strength also increases.

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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