Question

four resistors of 5 ohm 10 ohm 15 ohm and 20 ohm are connected in parallel. calculate equivalent resistance​

Answer 1

1/Rt = 1/R1 + 1/ R2 ......n.....

1/Rt= 1/5ohm + 1/10ohm + 1/15ohm +1/20ohm

1/Rt= 12ohm + 6ohm + 4ohm +3ohm

60.

1/Rt = 25 ohm

60

Rt= 60

25

Rt= 2.4 ohm.

note: Rt is equivalent resistance.