NEET Questions Solved


The magnitude of i in ampere unit is 

(1) 0.1

(2) 0.3

(3) 0.6

(4) None of these

(1) Applying Kirchoff's law in following figure.

At junction A :

i+i1+i2=1  .... (i)

For Loop (i)

60i+(15+5)i1=0

i1=3i ...(ii)

For loop (2)

– (15 + 5) i1 + 10 i2 = 0

i2 = i1 = (3 i) = 6i

On solving equation (i), (ii) and (iii) we get i = 0.1 A

Short Trick : Branch current =  main current Resistance of opposite branchTotal resistance

i=1×203203+60 

= 0.1 A

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