Question

for the series combination of three resistors establish the relation R=R1+R2+R3 where the symbols have their usual meanings.Calculate the equivalent resistance of the combination of three resistors of 6ohms 9ohms and 18ohms are joined in parallel

Answer 1

1/Rp = 1/6+1/9+1/18.

=6/18

=1/3

Rp =3 ohm