Question

If three resistances 10 ohm, 20 ohm, 30 ohm are in parallel then their net resistance will be-

a) 11/60 ohm
b) 60/11 ohm
c) 60 ohm
d) 50 ohm​

Answer 1

Answer:

option b 60/11

Explanation:

Answer 2

Answer:

b.60/11

Explanation:

1/R=1/R1+1/R2+1/r3

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

=6/60+3/60+2/60=11/60

then R = 60/11