Question

What voltage is required to push 4.0 A of current through a 80.0 Ω resistor?
Group of answer choices

80 V

20 V

.05 V

320 V

Answer 1

To find the voltage required to push a certain current through a resistor, you can use Ohm's Law, which is given by the formula:

\[ V = I \times R \]

where \( V \) is the voltage, \( I \) is the current, and \( R \) is the resistance.

Given:
- Current \( I = 4.0 \) A
- Resistance \( R = 80.0 \) Ω

Now, plug the values into the formula:

\[ V = 4.0 \, \text{A} \times 80.0 \, \Omega = 320.0 \, \text{V} \]

Therefore, the required voltage is **320 V**.

So the correct answer is:

**320 V**