Find the voltage across the light bulb when this device is plugged into an 120V outlet.
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Find the voltage across the light bulb when this device is plugged into an 120V outlet.
Transformer is device which works on principle of electromagnetic induction. It is used to increase the voltage or decrease it at output by this principle. The output voltage or current to input current or voltage is given as
Where are number of turns in secondary and primary coil.
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