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With a constant input voltage of 17 V, the load resistance in Figure 17-48 is varied from 1kΩ to 1.2 Ω Neglecting any change in output voltage, how much does the shunt current through Q1 change?
For a 128-PSK modulator with an input data rate equal to 56 Mbps and a carrier frequency of 100 MHz, determine (a) minimum required bandwidth and (b) baud rate.
Explanation to "Electric circuits" question, The voltage across a load is v(t) = 260 sin (377t + 10 °) and the current through the load is i = 100 sin (377t + 10°). What is the RMS power?
1. Determine the magnitude of the impedance inohms for a 65 mH inductor with excitation at 750 rad/s. 2. Determine the magnitude of the impedance inohms for a 80 mH inductor in series with a 80 ohm resistor.
In Fig. 18-1, why does the probe see a high impedance? Explain how the voltage gain is calculated in each switch position.
A collimated light beam from a helium-neon laser at 632.8 nm wavelength impinges on a dielectric film of refractive index of 2.0 at an angle of 75 degrees to normal, with a polarization at 45 degrees to the plane of incidence.
An induction motor takes 350kW at 0.8 power factor lagging while driving a load. When an overexcited synchronous motor taking 150kW is connected in parallel with the induction motor, the overall power factor is improved to 0.95 lagging.
Radio Systems, In design of radio systems that incorporate wireless networks, considerations must be taken such as user access, transmission direction, switching and signal strength.
An easy way to Calculate the Suitable Capacitor Size in Farads & kVAR for Power factor Improvement .
State Carson's rule for bandwidth estimation. What does it reduce to for NBFM and WBFM and d erive an time domain expressionfor the output xd(t) of the system
Calculate the angular displacement between the rotor stacks. Determine the frequency of phase currents required to achieve a rotor speed of900r/min.
Both NO and NC connections are available for the level switches and the ON/OFF push buttons. Prepare a physical ladder diagram for this system.
Use electric circuit analysis techniques and Laplace methods to find the charge, q(t), on the capacitor as a function of time. The switch is closed at t=0 and the initial voltage V0 on the capacitor is 8 Volts.
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