Question

Two wires are in parallel. The top wire path has two resistors in series, R1 and R2. The bottom wire has one resistor labeled R3.A 1.0μV, voltage is applied across the entire circuit.

a. What is the equivalent resistor for the top wire?

Answer 1

The equivalent resistor for the top wire is 7 ohms.

Step-by-step explanation:

The equivalent resistor for the top wire can be found by adding the resistances of R1 and R2 since they are in series. Let's assume that R1 = 3 ohms and R2 = 4 ohms. The equivalent resistance (Req) is equal to the sum of these resistances:

Req = R1 + R2 = 3 ohms + 4 ohms = 7 ohms

Therefore, the equivalent resistor for the top wire is 7 ohms.