Question

How much current flows through a 10ohm resistor whem it is connected to a battery of 3v?

Answer 1

resistance of resistor , R = 10 ohm

voltage of battery , V = 3 volt

we know, from Ohm's law,
potential difference across battery = current passing through wire × resistance of wire.
e.g., V = IR

so, 3V = I × 10 ohm

I = 0.3 Ampere

hence, current flows through a 10ohm resistor is 0.3 ohm

Answer 2

To find current ; V =IR
3 = I × 10
3/10 =I
0.3 = I