Current through 470 Ω on a 9 V battery

Answer: current = 0.019 A (power 0.17 W).

What we know

  • Voltage: 9 V
  • Resistance: 470 Ω

Step by step

Given
V = 9 V, R = 470 Ω
Formula
I = V / R
Substitute
I = 9 / 470
Result
I = 0.019 A

All results

Current0.019 A
Power0.17 W

Open the ohm's law calculator with these numbers → and change any of them.

The physics

Ohm's law says current through a conductor is voltage divided by resistance. Voltage is the electrical 'pressure', resistance the narrowness of the pipe, and current the resulting flow.