an electric heater which is connected to a 220 volt supply line has two resistance coils A and B for 24 ohms resistance each these coils can be used separately in series or in parallel calculate the current drawn when a) only one coil a used b) coils A and B are used in series C( coils A and B are used in parallel
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Explanation:
in series the resistance of both adds.
and in parallel the resistance value is half of one .
and in single the resistance of one is taken.
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