Question

Three resistors A, B, and C are connected in parallel to a 120 volt source. If RA is = 60 ohms and RB is = 40 ohms, IC is 5 amp, calculate the equivalent resistance and the total current of the circuit.

Answer 1

For a parallel connection, all 3 resistors are at the same voltage, so, the resistance of C is

$$R_C=V/I_C=120/5=24\Omega.$$