Communication Systems If output power of a radio receiver is doubled, its volume is increased by __________ dB. 1 3 -3 2 1 3 -3 2 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For attenuation of high frequencies we should use Shunt capacitance Inductance Series capacitance Resistance Shunt capacitance Inductance Series capacitance Resistance ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Skip distance depends on time of day and angle of incidence. True False True False ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Fourier analysis indicate that a square wave can be represented as A fundamental sine wave and harmonics Fundamental and subharmonic sine waves A fundamental sine wave and even harmonics A fundamental sine wave and odd harmonics A fundamental sine wave and harmonics Fundamental and subharmonic sine waves A fundamental sine wave and even harmonics A fundamental sine wave and odd harmonics ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The disadvantage of FM over AM is that High modulating power is needed Large bandwidth is required High output power is needed Noise is very high for high frequency High modulating power is needed Large bandwidth is required High output power is needed Noise is very high for high frequency ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Assertion (A): In FM the frequency of the carrier is varied by the modulating voltageReason (R): FM and PM are two forms of angle modulation. Both A and R are correct and R is correct explanation of A A is wrong but R is correct A is correct but R is wrong Both A and R are correct but R is not correct explanation of A Both A and R are correct and R is correct explanation of A A is wrong but R is correct A is correct but R is wrong Both A and R are correct but R is not correct explanation of A ANSWER DOWNLOAD EXAMIANS APP