Question

What is inter relation between P, V, I, and R???

Answer 1

In the next tutorial about DC Circuits we will look at Ohms Law which is a mathematical equation explaining the relationship between Voltage, Current, and Resitance within electrical circuits and is the
foundation ofelectronics and electrical engineering. Ohm's Law is defined as: V = I*R.

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Answer 2

Explanation:

Electric power is given by :

$P=\dfrac{V^2}{R}$ ......(1)

V is voltage of circuit

R is resistance of circuit

As per Ohm's law, V = IR, I is current in the circuit

$P=\dfrac{(IR)^2}{R}\\\\P=I^2R$

or

Equation (1) becomes, if R=V/I

$P=\dfrac{V^2}{(V/I)}\\\\P=V\times I$

Hence, this is the required solution.

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