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What is the principle behind the working of a galvanometer? (2023)

Practice Questions

Q1
What is the principle behind the working of a galvanometer? (2023)
  1. Electromagnetic induction
  2. Magnetic force on a current-carrying conductor
  3. Electrostatic force
  4. Magnetic field lines

Questions & Step-by-Step Solutions

What is the principle behind the working of a galvanometer? (2023)
  • Step 1: Understand that a galvanometer is a device used to measure electric current.
  • Step 2: Know that it works by using a magnetic field.
  • Step 3: Realize that when electric current flows through a wire, it creates a magnetic field around the wire.
  • Step 4: Recognize that if this wire is placed in another magnetic field (like the one in the galvanometer), it experiences a force.
  • Step 5: This force causes the wire (or a needle attached to it) to move, which is what the galvanometer measures.
  • Step 6: The amount of movement of the needle indicates the strength of the current flowing through the wire.
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