1
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
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
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
4
GATE ECE 2003
MCQ (Single Correct Answer)
+2
-0.6
The action of a JFET in its equivalent circuit can be best represented as a
A
current controlled current source
B
current controlled voltage source
C
voltage controlled voltage source
D
voltage controlled current source
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
CBSE
Class 12