Question

Four resistors of 5ohm ,10ohm, 15ohm and 20ohm are connected in parallel . Calculate the total resistance of the circuit.

Answer 1

Answer:

1/R=1/5+1/10+1/15+1/20

1/R=2+1/10+20+15/15*20

1/R=3/10+35/300

1/R=90+35/300

1/R=125/300=5/12

R=12/5=2.4 ohm