Chapter 22, Problem 103A

To determine

To Write:Aphysics problem in which the given equation $I=\frac{60\text{W}}{110\text{V}}$ would be a part of solution.

Explanation of Solution

Introduction:

Power: It is the rate at which work is done or energy is transferred.

Mathematically, power is given as,

  $P=VI\text{or }\frac{V^2}{R}$

Where, $V$ is voltage across load, $I$ is the current through load and $R$ is load resistance.

The problem can be, “A bulb having power rating of 60 W is connected to 110 V voltage source. Find the current through the bulb.”

So, the solution is

  $\begin{array}{c}P=VI\\ I=\frac{P}{V}\\ =\frac{60}{110}\\ =0.545\text{A}\end{array}$