Ohm’s law states that the current (I) in amps equals the voltage (E) in volts divided by the resistance (R) in ohms. If you connected a 2 megohm resistor (2 × 106 ohms) across a 2.4 kilovolt voltage source (2.4 × 103 volts), what would be the current in amps?

The current in amps would be 0.0012 amps (1.2 mA).