Question

if three resistance of 4 ohm, 8 ohm, 12 ohm are connected in parallel then Rp =?​

Answer 1

Rp = 1/R1 + 1/R2 + 1/R3

Rp = 1/ 4 + 1/8 + 1/12

Rp = 6/ 24+ 3/24 + 2/24

Rp = 6 + 3 + 2 / 24

Rp = 11/24

Rp = 2. 18 ohm

Answer 2

1/4+1/8+1/12=1/req

6+3+2/24= 1/req

11/24=1/req

24/11=req