Question

What is the resistance between A and B in the given figure??​

Answer 1

Answer:

The three resistance of 20ohm,10ohm and 20ohm on the extreme right side are in series.

So, the resultant of these three resistances =20+20+10=50ohms.

This 50ohms is in parallel with 30ohms. So resultant of these two will be

1/R=1/30+1/50

1/R=80/1500

R=18.75ohms

Now, the resistance 10ohms,18.75ohms and 10ohms are in series.

Therefore, resultant resistance =18.75+10+10=38.75ohms

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