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Question
Electrical power P is given by the expression P = (Q × V) ÷ time
(a) What do the symbols Q and V represent?
(b) Express the power P in terms of current and resistance explaining the meanings of symbols used there in.
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Solution
(a) Q represents Charge and V represents Voltage.
(b) Electrical Power , P = I2R
where I : Current
and R : Resistance
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