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What is the role of a fuse in an electrical circuit?

Practice Questions

Q1
What is the role of a fuse in an electrical circuit?
  1. To increase current
  2. To decrease voltage
  3. To protect against overload
  4. To store energy

Questions & Step-by-Step Solutions

What is the role of a fuse in an electrical circuit?
  • Step 1: Understand that a fuse is a safety device used in electrical circuits.
  • Step 2: Know that a fuse is made of a thin wire that can melt.
  • Step 3: Learn that the fuse is connected in series with the circuit.
  • Step 4: Recognize that when the current flowing through the circuit is normal, the fuse stays intact.
  • Step 5: Realize that if the current exceeds a certain limit, the wire in the fuse will melt.
  • Step 6: Understand that when the wire melts, it breaks the circuit connection.
  • Step 7: Conclude that this action prevents damage to the circuit and protects devices from overheating.
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