Question

4. There are 2 resistors that are in parallel both resistors have a resistance of 2 ohms. What
is the current through the circuit if the voltage is 1.5V?​

Answer 1

1.5A. Two resistor of 2Ω connected in parallel to a voltage of 1.5V has a current through the circuit of 1.5A.

The key to solve this problem is finding the equivalent resistor in this circuit. We know that two resistor in parallel is Req = R1xR2/R1+R2.

Req = 2Ωx2Ω/2Ω+2Ω = 4/4Ω= 1Ω

By using Ohm's Law I = V/R, so the current through the circuit will be:

I = 1.5V/1Ω = 1.5A

The current through each resistor is:

I = 1.5V/2Ω = 0.75A