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Which of the following statements are correct? 1. A lowpass filter passes low frequencies and stops high frequencies. 2. A highpass filter passes high frequencies and rejects low frequencies 3. A bandpass filter passes frequencies within a frequency band and attenuates frequencies outside the band. 4. A bandstop filter passes frequencies within the band and blocks/attenuates frequencies outside a frequency band.
What is the total voltage gain of a cascading transistor amplifier if the gain of first stage is 14dB, gain of the second stage is 12dB and gain of third stage is 24dB?
Two non-inverting amplifiers, with gain =1 and gain=20 are made using identical operational amplifiers. As compared to the unity gain amplifier, the amplifier with gain=20 has ___________
The input resistance of a silicon transistor is 100 Ω. The Base current is changed by 40 μA which results in a change in collector current by 2 mA. This transistor is used as a common emitter amplifier with a load resistance of 4 KΩ. The voltage gain of the amplifier is:
Generally the gain of a transistor amplfier falls at high frequency due to the
Which of the following advantages are there for a Darlington pair compared with a single transistor?  i) High current gain ii) High input resistance iii) High voltage gain iv) High bandwidth
Assertion (A): A high electron mobility transistor is based upon modulation-doped (GaAs - AlGaAs) single heterojunction structure. Reason (R): HEMT shows a very high noise figure and very low gain at very high microwave frequencies up to 70 GHz.
What is the total voltage gain of a high frequency response of differential amplifier if the gain of first stage is 10dB, gain of the second stage is 20dB and gain of third stage is 30dB?
What is the total voltage gain of a high frequency response of multistage amplifier if the gain of first stage is 14dB, gain of the second stage is 12dB and gain of third stage is 24dB?
An X- band amplifier has a gain of 20 dB and a gain of 1GHz bandwidth. Noise figure of the amplifier is -62 dBm at 290 K and -64.7 dBm at 77 K. then the Y factor of the amplifier is :