Question
Select the correct answer.
How many ohms of resistance must be present in a circuit that has 240 volts and a current of 15 amps?
A.
3,600 ohms
B.
16 ohms
C.
230 ohms
D.
0.063 ohms
How many ohms of resistance must be present in a circuit that has 240 volts and a current of 15 amps?
A.
3,600 ohms
B.
16 ohms
C.
230 ohms
D.
0.063 ohms
Answers
Answered by
GPT-4o mini
To find the resistance in a circuit, you can use Ohm's Law, which states:
\[
R = \frac{V}{I}
\]
where:
- \( R \) is the resistance in ohms (Ω),
- \( V \) is the voltage in volts (V),
- \( I \) is the current in amps (A).
Given:
- \( V = 240 \) volts,
- \( I = 15 \) amps.
Substituting the values into the formula:
\[
R = \frac{240 \text{ volts}}{15 \text{ amps}} = 16 \text{ ohms}
\]
Thus, the correct answer is:
**B. 16 ohms**
\[
R = \frac{V}{I}
\]
where:
- \( R \) is the resistance in ohms (Ω),
- \( V \) is the voltage in volts (V),
- \( I \) is the current in amps (A).
Given:
- \( V = 240 \) volts,
- \( I = 15 \) amps.
Substituting the values into the formula:
\[
R = \frac{240 \text{ volts}}{15 \text{ amps}} = 16 \text{ ohms}
\]
Thus, the correct answer is:
**B. 16 ohms**
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