Communication Systems The colour of an object is decided by The wavelength transmitted through it The reflected colour Reflected colour for opaque object and wavelength transmitted through it for transparent objects None of these The wavelength transmitted through it The reflected colour Reflected colour for opaque object and wavelength transmitted through it for transparent objects None of these ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In a FM receiver, amplitude limiter None of these Eliminates any change in amplitude of received FM signals Reduces the amplitude of signals Amplifiers low frequency signals None of these Eliminates any change in amplitude of received FM signals Reduces the amplitude of signals Amplifiers low frequency signals ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following is an indirect way of generating FM? Reactance FET modulator Armstrong modulator Reactance bipolar transistor Varactor diode modulator Reactance FET modulator Armstrong modulator Reactance bipolar transistor Varactor diode modulator ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A telephone channel requires a bandwidth of about 1 kHz 50 kHz 3 kHz 10 kHz 1 kHz 50 kHz 3 kHz 10 kHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The frequency range of 300 kHz to 3000 kHz is known as Medium frequency Very high frequency Low frequency High frequency Medium frequency Very high frequency Low frequency High frequency ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For a plate-modulated class C amplifier the plate supply voltage is E. The maximum plate cathode voltage could be almost high as 4E 6E 3E 2E 4E 6E 3E 2E ANSWER DOWNLOAD EXAMIANS APP
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