Answered

Welcome to Westonci.ca, your go-to destination for finding answers to all your questions. Join our expert community today! Ask your questions and receive accurate answers from professionals with extensive experience in various fields on our platform. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

The power in an electrical circuit is given by the equation [tex]P = I^2 R[/tex], where [tex]I[/tex] is the current flowing through the circuit and [tex]R[/tex] is the resistance of the circuit. What is the power in a circuit that has a current of [tex]12 \, \text{amps}[/tex] and a resistance of [tex]100 \, \text{ohms}[/tex]?

A. 8.3 watts
B. 14,400 watts
C. 144 watts
D. 1200 watts


Sagot :

To determine the power ([tex]\(P\)[/tex]) in an electrical circuit using the given current ([tex]\(I\)[/tex]) and resistance ([tex]\(R\)[/tex]), we utilize the power formula:
[tex]\[ P = I^2 \times R \][/tex]

Given:
- Current ([tex]\(I\)[/tex]) is 12 amps.
- Resistance ([tex]\(R\)[/tex]) is 100 ohms.

Let's go through the step-by-step solution:

1. Calculate [tex]\( I^2 \)[/tex] (the square of the current):
[tex]\[ I^2 = 12^2 = 144 \][/tex]

2. Multiply [tex]\( I^2 \)[/tex] by the resistance [tex]\( R \)[/tex]:
[tex]\[ P = 144 \times 100 = 14,400 \][/tex]

Therefore, the power [tex]\(P\)[/tex] in the circuit is [tex]\(14,400\)[/tex] watts.

The correct answer is:
B. 14,400 watts