1. Which are the circumstances that lead to the flow of excess current

1.	1. Which are the circumstances that lead to the flow of excess current in a house hold circuit?2. What happens to the circuit when there is an excess current in a circuit?3. How does a safety fuse protect a circuit?
Answer» 1. Over loading or Short circuit. 2. More heat is generated. So appliances and circuit will get damaged. 3. The current in the circuit may increase due to reasons such as short circuit, overload, excess flow of current or any problems in the insulation. As the higher temperature produced in the circuit due to these reasons makes the fuse wire to melt and the flow of current stops. Thus the circuit and the appliances are protected.

1. Which are the circumstances that lead to the flow of excess current in a house hold circuit?2. What happens to the circuit when there is an excess current in a circuit?3. How does a safety fuse protect a circuit?

Answer»

1. Over loading or Short circuit.

2. More heat is generated. So appliances and circuit will get damaged.

3. The current in the circuit may increase due to reasons such as short circuit, overload, excess flow of current or any problems in the insulation. As the higher temperature produced in the circuit due to these reasons makes the fuse wire to melt and the flow of current stops. Thus the circuit and the appliances are protected.

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1. Which are the circumstances that lead to the flow of excess current in a house hold circuit?2. What happens to the circuit when there is an excess current in a circuit?3. How does a safety fuse protect a circuit?

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