Physics-
General
Easy
Question
The magnitude of i in ampere unit is
- 0.1
- 0.3
- 0.6
- None of these
The correct answer is: 0.1
Applying Kirchoff's law in following figure.
At junction A :
.... (i)
For Loop (i)
Þ 
...(ii)
For loop (2)
– (15 + 5) i1 + 10 i2 = 0
Þ i2 = i1 = (3 i) = 6i
On solving equation (i), (ii) and (iii) we get i = 0.1 A
Short Trick : Branch current =
Þ
= 0.1 A
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