Q.1.
In radio transmission, the medium of transmission is ___________
Q.2.
In a radio receiver, we generally use ___________ oscillator as a local oscillator
Q.3.
In an AM wave useful power is carrier by ___________
Q.4.
When the modulating signal controls the frequency of the carrier, we get___________
Q.5.
In India, ___________ modulation is used for radio transmission
Q.6.
The diode detector in an AM radio receiver is usually found ___________
Q.7.
In a radio receiver, noise is generally developed at ___________
Q.8.
The diode detector in an AM radio receiver is usually found ___________
Q.9.
The function of ferrite antenna is to ___________
Q.10.
If Amin =and Amax =what is the percentage of modulation?
Q.11.
If Amin =and Amax =what is the percentage of modulation?
Q.12.
The signal voltage induced in the aerial of a radio receiver is of the order of ___________
Q.13.
The function of ferrite antenna is to ___________
Q.14.
Modulation is done in ___________
Q.15.
Modulation refers to a low-frequency signal controlling the ___________
Q.16.
As the modulation level is increased, the carrier power ___________
Q.17.
In an AM wave, the majority of the power is in ___________
Q.18.
AkW carrier is to be amplitude modulated to a level of 85%. What is the carrier power after modulation?
Q.19.
In amplitude modulation, the ___________ of carrier is varied according to the strength of the signal.
Q.20.
A high Q tuned circuit will permit an amplifier to have high ___________