Question

Find total resistance if 3 resistors of 10ohm, 20ohm and 30ohm are connected in parallel respectively.​

Answer 1

let be the R1= 10ohm , R2= 20 ohm and R3 = 30ohm .

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

= 1/10+1/20+1/30

=6+3+2/60

1/Rp = 11 /60

Rp = 60/11

Rp = 5.4ohm Ans