Question

In a given circuit, the supplied voltage is 1.5 volts. One resistor is 3 ohms and the other is 2 ohms. What is the current in the circuit?

Answer 1

Either 0.3 A or 1.25 A, depending on how they are connected.

Explanation:

Those 2 resistors could be connected in series or in parallel. The current depends on that information. I will work it both ways.

Series :
The equivalent resistance would be `3 Omega + 2 Omega = 5 Omega`

Ohm's Law is I = V/R = (1.5 V) / (5 Omega) = 0.3 A#

Parallel :
The equivalent resistance would be `(3 Omega * 2 Omega)/(3 Omega + 2 Omega) = 1.2 Omega`

Ohm's Law is I = V/R = (1.5 V) / (1.2 Omega) = 1.25 A#

I hope this helps,
Steve