Question
A flashlight has four 1.5-volt batteries. The bulb has a resistance of 2.4 ohms. What is the amperage of the circuit?
V=IR
(1 point)
Responses
0.625 A
0.625 A
14.4 A
14.4 A
2.5 A
2.5 A
0.4 A
V=IR
(1 point)
Responses
0.625 A
0.625 A
14.4 A
14.4 A
2.5 A
2.5 A
0.4 A
Answers
GPT-4o mini
To find the amperage of the circuit, we can use Ohm's Law, which is given by the formula:
\[ V = I \cdot R \]
Where:
- \( V \) is the voltage,
- \( I \) is the current (amperage),
- \( R \) is the resistance.
Since the flashlight has four 1.5-volt batteries, we can find the total voltage:
\[ V = 4 \times 1.5 \, \text{volts} = 6 \, \text{volts} \]
Now, we can rearrange Ohm's Law to solve for \( I \) (current):
\[ I = \frac{V}{R} \]
Substituting in the values we have:
\[ I = \frac{6 \, \text{volts}}{2.4 \, \text{ohms}} \]
Calculating this gives:
\[ I = \frac{6}{2.4} = 2.5 \, \text{A} \]
So the amperage of the circuit is **2.5 A**.
The correct response is:
**2.5 A**
\[ V = I \cdot R \]
Where:
- \( V \) is the voltage,
- \( I \) is the current (amperage),
- \( R \) is the resistance.
Since the flashlight has four 1.5-volt batteries, we can find the total voltage:
\[ V = 4 \times 1.5 \, \text{volts} = 6 \, \text{volts} \]
Now, we can rearrange Ohm's Law to solve for \( I \) (current):
\[ I = \frac{V}{R} \]
Substituting in the values we have:
\[ I = \frac{6 \, \text{volts}}{2.4 \, \text{ohms}} \]
Calculating this gives:
\[ I = \frac{6}{2.4} = 2.5 \, \text{A} \]
So the amperage of the circuit is **2.5 A**.
The correct response is:
**2.5 A**