NCERT Question 5 (MCQ) - Chapter 13 Class 10 - Magnetic Effects of Electric Current

At the time of short circuit, the current in the circuit

1. reduces substantially.
2. does not change.
3. increases heavily.
4. vary continuously.

Answer

increases heavily.

Explanation -  

When live wire and neutral wire comes in direct contact with each other, they cause short circuit

This happens if insulation of both wires get torn and hence, current flows through wire without much resistance.

Hence, the current increases heavily.