Hello!
The answer is: The voltage is 5400 Volts.
Why?
We can calculate the voltage using the Ohm's Law.
The Ohm'ws Law states that:

Where,
V, is the voltage in volts
I, is the current in amps
R, is the resistance in ohms
We are given:

Now, calculating the voltage, we have:

Hence, the voltage is 5400 Volts.
We can also calculate the power using the following formula:

Where,
P, is the power in watts
V, is the voltage in volts
I, is the current in amps
So,

Have a nice day!