Start with the formula V = IR, where V is voltage, I is current, and R is resistance.
The voltage is 3 volts, so V = 3 volts
The resistance is 68 ohms, so R = 68 ohms
We don’t know I, which is the current in amps
Plug in what we know into the ohms law formula:
3 volts = I * 68 ohms
I = 3/68 = 0.044 Amps
