What happens to the magnetic field inside a long solenoid when the current throu

Practice Questions

Q1
What happens to the magnetic field inside a long solenoid when the current through it is increased?
  1. Magnetic field decreases
  2. Magnetic field remains constant
  3. Magnetic field increases
  4. Magnetic field becomes zero

Questions & Step-by-Step Solutions

What happens to the magnetic field inside a long solenoid when the current through it is increased?
  • Step 1: Understand what a solenoid is. A solenoid is a long coil of wire that creates a magnetic field when electricity flows through it.
  • Step 2: Know that the magnetic field is the area around the solenoid where magnetic forces can be felt.
  • Step 3: Recognize that the strength of the magnetic field inside the solenoid depends on the amount of electric current flowing through the wire.
  • Step 4: Learn that 'directly proportional' means that if one thing increases, the other thing also increases.
  • Step 5: When the current through the solenoid is increased, the magnetic field strength inside the solenoid also increases.
  • Step 6: Conclude that more current means a stronger magnetic field inside the solenoid.
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