1
GATE ECE 1988
Subjective
+8
-0
The circuit shown below is initially in a steady state condition. At $$t = 0$$, the switch '$$S$$' is opened.

(i) Determine the initial voltage $${V_c}\left( {{0^ - }} \right)$$ across the capacitor and initial current $${i_L}\left( {{0^ - }} \right)$$ through the inductor.
(ii) Find the voltage $${v_L}\left( t \right)$$ across the inductor for $$t > 0$$.

GATE ECE 1988 Network Theory - Transient Response Question 15 English
2
GATE ECE 1988
MCQ (Single Correct Answer)
+2
-0.6

If an impedance ZL is connected across a voltage source V with source impedance ZS, then for maximum power transfer, the load impedance must be equal to

A
Source impedance ZS
B
Complex conjugate of ZS
C
Real part of ZS
D
Imaginary part of ZS
3
GATE ECE 1988
MCQ (Single Correct Answer)
+2
-0.6
The Laplace transform of a function f(t)u(t), where f(t) is periodic with period T, is A(s) times the Laplace transform of its first period. Then
A
A(s) = s
B
A(s) = 1/(1-exp(-Ts))
C
A(s) = 1/(1+exp(-Ts))
D
A(s) = exp (Ts)
4
GATE ECE 1988
MCQ (Single Correct Answer)
+2
-0.6
The transfer function of a zero-order hold is
A
$${{1 - \exp ( - Ts)} \over s}$$
B
$$1/s$$
C
1
D
$$1/\left[ {1 - \exp \left( { - Ts} \right)} \right]$$