What is the amperage of a 480 V motor drive with a resistance of 40 ohms?

To find the amperage of a 480 V motor drive with a resistance of 40 ohms, you can apply Ohm's Law, which states that current (I) is equal to voltage (V) divided by resistance (R).

In this case, you have a voltage of 480 V and a resistance of 40 ohms. You can calculate the current by using the formula:

I = V / R

By substituting the values:

I = 480 V / 40 ohms

When you perform the calculation:

I = 12 amps

This means the correct amperage for the motor drive is indeed 12 amps. Therefore, this is the accurate answer based on the application of Ohm's Law, reflecting the relationship between voltage, current, and resistance in an electrical circuit.