5. Frequency multiplier can be implemented practically by using a) Amplifier b) Capacity c) Nonlinear device junction d) Inductance. 6. The bandwidth of NBFM is approximately equal to a) fm b) 2fm c) 3fm d) 2ßfm 7. In Armstrong's indirect FM generation circuit, the mixer a) Changes the carrier frequency and the frequency deviation. b) Changes the carrier frequency keeping the frequency deviation without any chang c) Changes the frequency deviation keeping carrier frequency without any changes. d) Keeping the carrier frequency and the frequency deviation without any changes.

Computer Networking: A Top-Down Approach (7th Edition)
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5. Frequency multiplier can be implemented practically by using
a) Amplifier
b) Capacity
c) Nonlinear device junction
d) Inductance.
6. The bandwidth of NBFM is approximately equal to
a) fm
b) 2fm
c) 3fm
d) 2ßfm
7. In Armstrong's indirect FM generation circuit, the mixer
a) Changes the carrier frequency and the frequency deviation.
b) Changes the carrier frequency keeping the frequency deviation without any changes.
c) Changes the frequency deviation keeping carrier frequency without any changes.
d) Keeping the carrier frequency and the frequency deviation without any changes.
8. The efficiency of AM-DSB modulator when the modulation index is one is equal
to
a) 50%
b) 70%
c) 33.3%
d) 0%
9. Voltage controlled oscillator (VCO) is an oscillator that its frequency output is varied
according to any change in the
at its input.
a) Frequency
b) Current
c) Voltage
d) Wavelength
10. Matching of a transmission line with a characteristic impedance (Zo) and a load impedance
(ZR) can be obtained when
a) ZR=0.5Zo b) ZR=2Zo
c) ZR=Zo
d) ZR=0
Transcribed Image Text:5. Frequency multiplier can be implemented practically by using a) Amplifier b) Capacity c) Nonlinear device junction d) Inductance. 6. The bandwidth of NBFM is approximately equal to a) fm b) 2fm c) 3fm d) 2ßfm 7. In Armstrong's indirect FM generation circuit, the mixer a) Changes the carrier frequency and the frequency deviation. b) Changes the carrier frequency keeping the frequency deviation without any changes. c) Changes the frequency deviation keeping carrier frequency without any changes. d) Keeping the carrier frequency and the frequency deviation without any changes. 8. The efficiency of AM-DSB modulator when the modulation index is one is equal to a) 50% b) 70% c) 33.3% d) 0% 9. Voltage controlled oscillator (VCO) is an oscillator that its frequency output is varied according to any change in the at its input. a) Frequency b) Current c) Voltage d) Wavelength 10. Matching of a transmission line with a characteristic impedance (Zo) and a load impedance (ZR) can be obtained when a) ZR=0.5Zo b) ZR=2Zo c) ZR=Zo d) ZR=0
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