A. Using a large number of amplifier stages
B. Using a push-pull circuit
C. Obtaining lower fixed intermediate frequency
D. None of the above
Related Mcqs:
- The function of ferrite antenna is to_________________?
A. Reduce stray capacitance
B. Stabilise d.c. bias
C. Increase the Q of tuned circuit
D. Reduce noise - The superhetrodyne principle provides selectivity at ______________stage?
A. RF
B. IF
C. audio
D. Before RF - Modulation refers to a low-frequency signal controlling the ________________?
A. Amplitude of the carrier
B. Frequency of the carrier
C. Phase of the carrier
D. May be any of the above - In amplitude modulation, the _____________of carrier is varied according to the strength of the signal?
A. Amplitude
B. Frequency
C. Phase
D. None of the above - The signal voltage induced in the aerial of a radio receiver is of the order of ________________?
A. mV
B. µV
C. V
D. None of the above - In a radio receiver, noise is generally developed at _______________?
A. IF stage
B. Receiving antenna
C. Audio stage
D. RF stage - A high Q tuned circuit will permit an amplifier to have high __________________?
A. Fidelity
B. Frequency range
C. Sensitivity
D. Selectivity - The letters AVC stand for ________________?
A. Audio voltage control
B. Abrupt voltage control
C. Automatic volume control
D. Automatic voltage control - As the modulation level is increased, the carrier power__________________?
A. Is increased
B. Remains the same
C. Is decreased
D. None of the above - In TV transmission, sound signal is ______________modulated?
A. Amplitude
B. Frequency
C. Phase
D. None of the above
