1
GATE ECE 2003
MCQ (Single Correct Answer)
+2
-0.6
An ideal sawtooth voltage waveform of a frequency 500 Hz and Amplitude 3 V is generated by charging a capacitor of 2 $$\mu F$$ in every cycle the charging requires
A
Constant voltage source of 3 V 1 ms
B
Constant voltage source of 3 V 2 ms
C
Constant current source of 3mA for 1 ms
D
Constant current source of 3mA for 2 ms
2
GATE ECE 2003
MCQ (Single Correct Answer)
+1
-0.3
Generally, the gain of a transistor Amplifier falls at high frequency due to the
A
Internal Capacitances of the device
B
Coupling Capacitor at the input
C
Skin Effects
D
Coupling Capacitor at the output
3
GATE ECE 2003
MCQ (Single Correct Answer)
+2
-0.6
Three identical amplifiers with each one having a voltage gain of 50, input Resistance of 1 KΩ and output resistance of 250Ω, are cascaded. The open circuit voltage gain of the combined Amplifier is
A
49 dB
B
51 dB
C
98 dB
D
102 dB
4
GATE ECE 2003
MCQ (Single Correct Answer)
+2
-0.6
In the amplifier circuit shown in the figure, the values of R1 and R2 are such that the transistor is operating at VCE = 3V and IC = 1.5 mA when its $$\beta $$ is 150. For a transistor with $$\beta $$ of 200, the operating point (VCE, IC) is GATE ECE 2003 Analog Circuits - Bipolar Junction Transistor Question 40 English
A
( 2 V , 2 mA)
B
( 3 V , 2 mA)
C
( 4 V , 2 mA)
D
( 2 V , 1 mA)
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