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Q. Commercial FM radio broadcasting?
Commercial FM radio broadcasting utilizes the frequency band of 88 to 108 MHz for the transmission ofmusic and voice signals. The carrier frequencies are separated by 200 kHz, and the peak frequency deviation is fixed at 75 kHz. Each station (out of the possible 100) broadcasts in a channel bandwidth of 200 kHz centered on the carrier. The FM system is capable of presenting higher quality audio to the user than AM because of the larger audio band allowed from 50 Hz to 15 kHz. Distortion at most stations is below 1%. Besides broadcast applications, FM is also used in satellite links, aircraft altimetry, radars, amateur radio, and various two-way radio applications. Because of the larger bandwidth (up to 20 times more than in AM), an FM system has more freedom from interference and better performance in noise than any AM station.
Primacy of MOSFET In the year 1959, Dawon Kahng and Martin M. (John) Atalla at Bell laboratory invented the MOSFET. Operationally and structurally diverse from the bipolar ju
Q. What is a Modem? Modems are generally used to interface digital circuits to transmit information on analogue channels such as telephone systems. Modem (from modulator-demodu
Refer to Figure 100. Assume MKS units. Given: R1= 4, R2=14, R3= 9, I4= 8, I5= 7. Determine: Ieq, Req, and V3.
Q. For an n-channel JFET with V A = 350 V, I DSS = 10 mA, and V P = 3V, find V DS that will cause i D = 11 mA when v GS = 0.
Q. Explain the conditions under which an RC circuit behaves as Integrator? Integrator is a circuit in which the output voltage is proportional to the integral of the input. Out
Q. What is meant by Thermal Runaway? Explain with reference to a transistor.How is it avoided in circuits? The collector current of a transistor increases with increasing tempe
For the circuit of Figure, obtain the complete solution for the current i L (t) through the 5-H inductor and the voltage v x (t) across the 6- resistor.
what is finger voltage in terms of thyristor
Explain Bimetals. Bimetals : It is made of two metallic strips of not like metal alloys with various coefficients of thermal expansion. At a specific temperature the strip wil
#questionhyprid model for cc configuration..
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