Question

The touching of a live wire and neutral wire directly is known as

• A. power rating
• B. short circuit
• C. overloading
• D. none of these

Answer 1

The correct option is B

short circuit

Explanation for the correct answer:

1. When a live wire comes in contact with a neutral wire, the resistance of the circuit decreases which increases the current suddenly.
2. When the current suddenly increases, the wire gets heated and this results in a short circuit.

Explanation for incorrect choices:

1. The power delivered by a circuit will have a certain limit. If any appliance demands more power, the circuit may get heated and may catch fire. This phenomenon is called overloading.
2. The highest power input allowed to flow through a particular appliance is defined as a power rating.

Hence, option B is the correct answer.