Question

plz plz don't forget to bring ans

Answer 1

1÷R=1÷5+1÷10+1÷15+1÷20
=25÷60
R=12÷5 and
Hope this helps you

Answer 2

R1 = 5
R2 = 10
R3 = 15
R4 = 20

1/R = 1/R1 + 1/R2 + 1/R3 + 1/R4
1/R = 1/5 + 1/10 + 1/15 + 1/20

Take LCM ( LCM= 60)
1/R = 12/60 + 6/60 + 4/60 + 3/60
1/R = 25/60

R = 60/25
R = 2.4


So, equivalent resistance = 2.4 ohm


Hope it helps.
If u satisfied mark it brainliest.