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The magnetic field inside a long solenoid is?

Practice Questions

Q1
The magnetic field inside a long solenoid is?
  1. Zero
  2. Uniform
  3. Non-uniform
  4. Depends on the current

Questions & Step-by-Step Solutions

The magnetic field inside a long solenoid is?
  • Step 1: Understand what a solenoid is. A solenoid is a long coil of wire that creates a magnetic field when an electric current passes through it.
  • Step 2: Recognize that when the solenoid is long enough, the magnetic field inside it becomes consistent throughout its length.
  • Step 3: Note that the magnetic field lines inside the solenoid are straight and run parallel to the length of the solenoid.
  • Step 4: Conclude that the magnetic field inside a long solenoid is uniform, meaning it has the same strength and direction at every point inside.
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