Question

resistors of 20 ohm, 40 ohm, 50 ohm are connected in parallel across a 50V power source. Find the equivalent resistance of the set and the current in each resistor?

Answer 1

Rt=total resistance, R1, R2 and R3 are resistors
1/Rt=1/R1+1/R2+1/R3
1/Rt=1/20+1/40+1/50
1/Rt=(10+5+4)/200
1/Rt=19/200
Rt=200/19 ohm
I1=V/R1
I2=V/R2
I3=V/R3