Write an expression for the electrical power spent in flow of current through a conductor in terms of (a) resistance and potential difference (b) current and resistance.
Which of the following expressions represent(s) the electrical power in a circuit? (V - Potential difference, I - current and R - Resistance)
The expression for calculating electrical power in terms of current and resistance.
Electrical power P is given by the expression P=(Q×V)÷time. (a) What do th symbols Q and V represent? (b) Expresss the power P in terms of current and resistance explaining the meaning of symbols used there in.