1
GATE ECE 2014 Set 2
MCQ (Single Correct Answer)
+2
-0.6
In the figure shown, the capacitor is initially uncharged. Which one of the following expressions describes the current I(t) (in mA) for t > 0? GATE ECE 2014 Set 2 Network Theory - Transient Response Question 17 English
A
$$I(t) =\frac53\left(1-e^\frac{-t}\tau\right)\;,\tau=\frac23\;m\;sec$$
B
$$I(t) =\frac52\left(1-e^\frac{-t}\tau\right)\;,\tau=\frac23\;m\;sec$$
C
$$I(t) =\frac53\left(1-e^\frac{-t}\tau\right)\;,\tau=\;3\;m\;sec$$
D
$$I(t) =\frac52\left(1-e^\frac{-t}\tau\right)\;,\tau=\;3\;m\;sec$$
2
GATE ECE 2011
MCQ (Single Correct Answer)
+2
-0.6

In the circuit shown below, the initial charge on the capacitor is 2.5 mC, with the voltage polarity as indicated. The switch is closed at time t=0. The current i(t) at a time t after the switch is closed is

GATE ECE 2011 Network Theory - Transient Response Question 23 English
A
i(t) = 15 exp(-2 × 103 t) A
B
i(t) = 5 exp(-2 × 103 t) A
C
i(t) = 10 exp(-2 × 103 t) A
D
i(t) = -5 exp(-2 × 103 t) A
3
GATE ECE 2010
MCQ (Single Correct Answer)
+2
-0.6
In the circuit shown, the switch S is open for a long time and is closed at t=0. The current i(t) for t ≥ 0+ is GATE ECE 2010 Network Theory - Transient Response Question 18 English
A
i(t) = 0.5 - 0.125e-1000t A
B
i(t) = 1.5 - 0.125e-1000t A
C
i(t) = 0.5 - 0.5e-1000t A
D
i(t) = 0.375e-1000t A
4
GATE ECE 2009
MCQ (Single Correct Answer)
+2
-0.6
The switch in the circuit shown was on position ‘a’ for a long time and is moved to position ‘b’ at time t = 0. The current i(t) for t > 0 is given by GATE ECE 2009 Network Theory - Transient Response Question 20 English
A
0.2e-125t u(t) mA
B
20e-1250t u(t) mA
C
0.2e-1250t u(t) mA
D
20e-1000t u(t) mA
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