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Khimraj
3007 Points
3 years ago
equivalent resistance of circuit is 4/3 ohm.
So total current in circuit is 24 A.
Current in upper 1 ohm resitance will be 24*2/3 = 16.
from point A current have two path one of 2ohm and other from Ato B and then 1 ohm.
So it will choose path with lesser resistance. SO it will choose second path.
So current through AB wire is 16A.
Hope it clears.
Vignesh vijayakumar
29 Points
3 years ago
Sorry sir,Answer given in my book for the current through AB is 8A.Also i dont understand why do u multiply 2/3*24..Sir plzz clear my doubt....
Khimraj
3007 Points
3 years ago
Total current is 24 A and we have to divide in two branch having resistance 1 ohm and 2 ohm. So Divide this. You will get 16 amp current through 1 ohm resistance and 8 ohm through 2 ohm resistance. Circuit has symmetry that means if you reverse battery polarity there is no change so current through exit 2 ohm resistance will be also 8 amp and through exit 1 ohm resistance will be also 16 amp. So current throng AB is 16 amp from A to B and 8amp from B to A. so net current through AB is 8 A.
Vignesh vijayakumar
29 Points
3 years ago
Thank u sooo much sir......here i approve both of ur answers....nd i hope you`ll clear our doubts further forward....