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VITEEE 2019 Solved Paper
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© examsnet.com
Question : 20
Total: 125
The figure below shows currents in a part of electric circuit. The current i is
1.7 amp
3.7 amp
1.3 amp
1 amp
Validate
Solution:
According to Kirchhoff's first law,
At junction A,
i
A
B
=
2
+
2
=
4
A
At junction B,
i
A
B
=
i
B
C
+
1
⇒
i
B
C
=
4
−
1
=
3
A
At junction C,
i
=
i
B
C
−
1.3
= 3 -1.3 = 1.7A
© examsnet.com
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