Physics
Grade-9
Easy
Question
When current flows through a conductor, the conductor will heat up. If the conductor temperature exceeds the insulation rating of the cable, then the
- Insulation can be damaged
- Insulation will heat but then cool down
- No effect on the insulation
- Circuit current increases.
Hint:
Cable insulation is designed to withstand the voltage and current till a certain threshold level.
The correct answer is: Insulation can be damaged
When current flows through a conductor, the conductor will heat up. If the conductor temperature exceeds the insulation rating of the cable, then the insulation will be damaged.
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