Electronics and Communication Engineering - Exam Questions Papers - Discussion
Discussion Forum : Exam Questions Papers - Exam Paper 4 (Q.No. 6)
6.
i1(t) for t > 0 is given by
Answer: Option
Explanation:
The time constant t is given by
As Req = 4 || 4 = 2 Ω
∴ i1(t) = iF - (iF - i1)e-t/t
ifinal = 
= 2.5 A
∴ i1(t) = 2.5 - (2.5 - 1.25)e-t/1/2
i1(t) = 2.5 - 1.25e-2t.
Discussion:
1 comments Page 1 of 1.
Ashwin ,mendhe said:
9 years ago
I think option b is wrong.
C is the right option, Because at I1(0) = 0, no current flows through switch, and i2 = 2.5, at I1(final) = 1.25. hence C is right.
C is the right option, Because at I1(0) = 0, no current flows through switch, and i2 = 2.5, at I1(final) = 1.25. hence C is right.
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