Question #4d763

1 Answer

Hello! I'm guessing you're studying circuit diagrams or of the like? I'm actually in grade 11 and just finished this unit!

In any case, you can use Ohm's law, V=IR and it's rearranged forms, to solve problems like these!

In regards to potential difference, you are solving for V... Where I is the current (in amps) and R is the resistance (in ohms).

If I was to say, determine the potential difference over a resistor of 12ohms with a current flow of 2A.

You would sub in the known values and solve:

Therefore, the potential difference is 24 volts!

Hope this helps! :)