Physics
One should not connect a number of electrical appliances to the same power socket because
this can damage the appliances due to overloading
this can damage the domestic wiring due to overloading
this can damage the electrical meter
the appliance will not get full voltage
this can damage the domestic wiring due to overloading
If we connect many appliances to the same socket, requirement of current for that socket will increase, the wire connected to that socket will have to supply more current, that may exceed its current rating and can damage it.
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