Chapter SH, Problem 6.11APP

To determine

To calculate: Current through a lightbulb.

Answer to Problem 6.11APP

Current through the lightbulb is $\underset{\_}{\text{0}\text{.8 A}}$ .

Explanation of Solution

Given:

Voltage difference = $\text{120 V}$

Power = $\text{100 W}$

Formula used:

Power is given by,

  $P=IV$

Where I is current and V is voltage difference.

Calculation:

Current is calculated as:

  $\begin{array}{l}P=IV\\ I=\frac{P}{V}\\ I=\frac{100\text{ W}}{120\text{ V}}\\ I=0.8\text{ A}\end{array}$

Conclusion:

Current through the lightbulb is $\underset{\_}{\text{0}\text{.8 A}}$ .