Consider two circuits, A and B, each of which has six resistors and each Circuit of resistance RA and RB respectively. In each circuit, the resistors are in such a way that the net resistance of each circuit is the minimum. Now a 20 V battery with negligible internal resistance is connected across each circuit separately, and the current drawn by circuit A and circuit B are 6 A and 8 A, respectively. Then RA and RB will be:
1
RA = 20 Ω and RB = 15 Ω
2
RA = 30 Ω and RB = 15 Ω
3
RA = 15 Ω and RB = 20 Ω
4
RA = 15 Ω and RB = 30 Ω