NEET Questions Solved

PMT - 1981

The figure below shows currents in a part of electric circuit. The current i is

(1) 1.7 amp

(2) 3.7 amp

(3) 1.3 amp

(4) 1 amp

(1) According to Kirchhoff's first law

At junction A, iAB=2+2=4A

At junction B, iAB=iBC1=3A

At junction C, i=iBC1.3=31.3=1.7amp

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