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Q. A beam containing two types of charged particles is moving from A to B. Particles of type I with charge +3q, and those of type II with charge -2q (where -q is the charge of an electron given by -1.6 × 10-19 C) flow at rates of 5 × 1015/s and 10×1015/s, respectively. Evaluate the current flowing in the direction from B to A.
A 10-kHz tone is used to frequency modulate a carrier; the peak deviation is 75 kHz. Use Carson''s rule to estimate the bandwidth.
Write down basic postulates of sommerfield’s free electron gas model. Show that the number of energy states per unit energy is given by g(E) = 4Rv/h 3 (2m) 3/2 E 1/2 . What is
Stator Voltage Control Methods By controlling the applied voltage the speed of an induction motor can be controlled. Since the output torque of 3-? induction motor i
The Octal Inverter 74LS 240 It is similar to above octal buffer but with inverter output. The logic diagram is shown in figure below . Normal 0
Magnetic materials
a. Describe the meaning of standing wave ratio. What is the formula for it, if the load is purely resistive? Why is a high value of SWR often undesirable? b. Determine how the c
Define Voltage Source Multiplying DAC? Voltage source multiplying DACs use a reference voltage which is switched in or out by the digital data. The converter is so-named becau
what is cro ?
Q. A satellite radio transmitter has P in = 3 W and G t = 30 dB. The receiving antenna has a circular aperture with radius r at the ground station 30,000 km away. Find r in meter
Construction of inductor An inductor is usually constructed as a coil of conducting material, typically opper wire, wrapped around a core either of air or ferrous material.
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