Question

Find the equivalent resistance between points A and B in the drawing.

Number____ Units____

Answer 1

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firstly find equivalent resistance of last loop elements. So:
Rt= 6 + R2 + 3 = 14
Now we have a loop with 14 and 8 So:
1/Rt = 1/14 + 1/8 = .196
Rt= 5.1
Now we have a loop with 5.1 and 4 Ohm which will be :
Rt= 5.1 + 4 = 9.1
and again:
1/Rt = 1/9.1 + 1/10 = 0.21
Rt= 4.76
And finally:
Rt= 4.76 + R1 = 7.76
So equivalent resistance between A and B is 7.76