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qim
Jan3-04, 05:36 AM
I can't understand question:

What effect would halving the battery voltage have on the power transfer in circuit P?


I guess what they want is for me to work out the power before and after with an equation such as.

P = V^2/R ( I know the voltage and the Resistance)

It's the "power transfer" bit that I can't really understand.

Help

qim