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a. Explain the meaning of amplitude modulation? Show that the AM output having two sidebands and the carrier frequency.
b. Illustrate that the equivalent parallel impedance of a tuned circuit is its equivalent resistance for noise
c. Describe Co-channel and Adjacent channel interference in radio receivers. Also compare wideband and narrow band FM.
d. Define Armstrong frequency modulation system with block diagram.
A DC shunt motor rotating at 1560 RPM is supplied from a 240-V source. The line current supplied to the motor is equal to 27 A. The shunt field resistance of the motor is equal to
Design a DC motor control system to run the 48V DC motor at 40rpm up to max load of the motor. You are responsible for designing the control of a 24V supply along with the speed s
emf equation
Calculate the current flow in 30Ω resistor for the circuit in figure using Thevenin's Theorem.
#What are the types of Negative Feedback Amplifier?
A coil has an inductance of 1.2H and a resistance of 40? and is connected to a 200 V, d.c. supply. Verify the approximate value of the current flowing 60 ms after connecting the co
Q. Explain working of induction machine rotor? The induction machine rotor may be one of two types: the wound rotor or the squirrel-cage rotor. The wound rotor has a polyphase
Int r insic Material A perfect semiconductor crystal with no impurities or lattice defects. No carriers at 0 K, since the valence band is completely full and t
Q. What are the three transistor configurations? The three configurations are common base (CB),common collector (CC) & common emitter(CE). The connection in which the base
types of filtered power supply
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