Question

The equivalent resistance between A and B is​

Answer 1

Answer:

option (4) 30 ohm

Step-by-step explanation:

Resistance in parallel 1/Rp=1/R1+1/R2

=1/10+1/20

=3/20

Rp1=20/3

1/Rp=1/R3+1/R4

=1/20+1/40

=3/40

Rp2=40/3

Total resistance:

Resistance in series Rs=Rp1+Rp2

=20/3+40/3

=60/3

=30 ohm

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