At series resonance, voltage across L is____________voltage across C?

A. Equal to but opposite in phase to
B. Equal to but in phase with
C. Greater than but in phase with
D. Less than but in phase with

A tuned amplifier is used in ___________ applications?

A. Radio frequency
B. Low frequency
C. Audio frequency
D. None of the above

The voltage gain of a tuned amplifier is____________at resonant frequency

A. Minimum
B. Maximum
C. Half-way between maximum and minimum
D. Zero

At series resonance, the circuit offers____________ impedance?

A. Zero
B. Maximum
C. Minimum
D. None of the above

A tuned amplifier is generally operated in ____________operation?

A. Class a
B. Class c
C. Class b
D. None of the above

In a superhetrodyne receiver, the difference frequency is chosen as the IF rather than the sum frequency because _________________?

A. The difference frequency is closer to oscillator frequency
B. Lower frequencies are easier to amplify
C. Only the difference frequency can be modulated
D. None of the above

In a TRF radio receiver, the RF and detection stages are tuned to______________?

A. Radio frequency
B. If
C. Audio frequency
D. None of the above

In the above question, what is the power in sidebands?

A. 8 kw
B. 6 kw
C. 06 kw
D. 9 kw

In TV transmission, sound signal is ______________modulated?

A. Amplitude
B. Frequency
C. Phase
D. None of the above

The diode detector in an AM radio receiver is usually found _____________?

A. Before the first rf stage
B. After the first rf stage
C. After several stages of amplification
D. None of the above