143k views
2 votes
What is the power produced by a light bulb with a voltage of 120 volts and a current of 0.045 amps?

User Pirho
by
6.6k points

2 Answers

5 votes

Answer: A.

5.4 watts

Explanation: edmentum

What is the power produced by a light bulb with a voltage of 120 volts and a current-example-1
User Sasidharan
by
7.5k points
7 votes

Answer:

5.4 watts

Step-by-step explanation:

There are 3 formulas of power (P) but since the problem gives us the current (I) and voltage (V). We can use the following formula:


\displaystyle{ P=IV}

We know that I or current is 0.045 amps and the voltage is 120 volts. Hence, substitute in:


\displaystyle{P=0.045 \: \text{amps} \: * \: 120 \: \text{volts}} \\ \\ \displaystyle{P=5.4 \: \text{watts}}

Therefore, the power produced is 5.4 watts

User Bill Heitstuman
by
7.4k points