find resistance between a and b
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Explanation:
According to Wheat Stone Bridge ,10ohm resistance will be displaced .
(40 + 20) ohm = 60 ohm ( series )
( 60 + 120 ) ohm = 180 ohm ( series )
1/60 +1/180 = 1/R
1/R = 4 /180
R = 180/4 = 45
himanshubro:
what is wheat strong bridge rule
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