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Overloading of a domestic circuit happens when
Amany high-power appliances run all at once
Bthe earth wire is connected to the body
Cthe supply voltage suddenly drops to zero
Donly a single low-power bulb is switched on
Answer & Solution
Correct answer: A. many high-power appliances run all at once
1. Each circuit is rated for a maximum safe current.
2. Running **many high-power appliances at once** draws a total current above this rating — overloading.
3. The excess current heats the wires and blows the fuse.
_Source: Karnataka SSLC (KSEEB) Class 10 Science, Ch13 'Magnetic Effects of Electric Current', §13.6_
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