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The output voltage of an ideal transform...

The output voltage of an ideal transformer, connected to a 240 V ac. when this transformer is used to light a bulb with rating 24 V, 24 W, calculate the current in the primary coil of the circuit.

Text Solution

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`E_(p)=240V`,
` E_(s) =24V`
` E__(s) I_(s)=24 W`
Current in primary coil `I_(p) =(E_(s)I_(s)/(E_(p)=(24)/(240)=0.1A`
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