How much current is produced by a voltage of 18 kV across a 15 kΩ resistance?

Answer: Option A

Ohm's Law helps us understand the relationship between voltage (V), current (I), and resistance (R) in an electrical circuit.
The formula is: V = I x R
We can rearrange this formula to find the current (I): I = V / R
In this question, we are given:
Voltage (V) = 18 kV = 18,000 V (Remember to convert kilovolts to volts!)
Resistance (R) = 15 kΩ = 15,000 Ω (Convert kiloohms to ohms!)
Now, let's plug these values into the formula:
I = 18,000 V / 15,000 Ω
I = 1.2 A
Therefore, the current produced is 1.2 Amperes.
The correct answer is A.