1
GATE ECE 1990
Subjective
+10
-0
A 200 volt (r. m. s) generator having an internal resistance of 200 ohm is feeding a loss-less transmission line. The characteristic impedance and the length of the line are 200 ohm and 10 m respectively. The line is terminated in a resistive load of 100 ohm. If the operating frequency is 37.5 MHz calculate the
Current drawn from the generator.
Magnitude and phase of the current flowing in the load.
Power delivered to the load.
2
GATE ECE 1990
MCQ (Single Correct Answer)
+2
-0.6
The incoming solar radiation at a place on the surface of the earth is 1.2 KW/m2.The amplitude of the electric field corresponding to this incident power is nearly equal to
A
80 mV/m
B
2.5 V/m
C
30 V/m
D
950 V/m
3
GATE ECE 1990
MCQ (Single Correct Answer)
+1
-0.3
In a junction diode
A
The depletion capacitance increases with increase in the reverse bias
B
The depletion capacitance decreases with increase in the reverse bias
C
The depletion capacitance increases with increase in the forward bias
D
The depletion capacitance is much higher than the depletion capacitance when it is forward bias.
4
GATE ECE 1990
MCQ (Single Correct Answer)
+2
-0.6
The transfer function of simple RC network functioning as a controller is $$$G\,{}_c\left( s \right)\,\,\,\,{{s + {z_1}} \over {s + {p_1}}}$$$

The condition for the RC network to act as a phase lead controller is

A
p1 < z1
B
p1 = 0
C
p1 = z1
D
p1 > z1
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