Two resistances each of 20 ohm are connected in parallel. The combination is connected in series with a resistance 20 ohm. Find the equivalent resistance of the combination?
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In parallel,
1/Rp=1/R+1/R2.....
= 2/20
= 1/10
Rp=10ohm
In series,
Rs=R1+R2
Rs=20+20
=40ohm
1/Rp=1/R+1/R2.....
= 2/20
= 1/10
Rp=10ohm
In series,
Rs=R1+R2
Rs=20+20
=40ohm
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