Question

A 5-ohm heater draws 9 amperes from a power supply. What is the voltage of the power supply?

Answer 1

Given:

Resistance, R = 5 ohms

Current, I = 9 amperes

Let's find the voltage.

To find the voltage, apply Ohm's law:

`V=I* R`

Where:

V is the voltage

I is the current = 9 amps

R is the resistance = 5 ohms

Thus, we have:

`\begin{gathered} V=9*5 \\ \\ V=45\text{ volts} \end{gathered}`

Therefore, the voltage is 45 volts.

ANSWER:

45 volts