Grade 12th passElectric Current

Plsssssssss answer thisssssssssssssss..........................

Vignesh vijayakumar

8 Years agoGrade 12th pass

4 Answers

Khimraj

Approved Tutor Answer8 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

8 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

8 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.