1.

Calculate the curren and the resistance ofa 100W, 200V electric bulb in an electric circuit.

Answer»

SOLUTION :POWER `P=100W` and Voltage `V=200V`
Power `P=VI`
So, Current, `I=(P)/(V)`
`=(100)/(20)=0.5A`
Resistance, `R=(V)/(I)`
`=(200)/(0.5)=400Omega`


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