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An electron in a cathode ray tube (CRT) accelerates from 2.00 " 104 m/s to 6.00 " 106 m/s over 1.50 cm.
(a) How long does the electron take to travel this 1.50 cm?
(b) What is its acceleration?
Write the mathlab program to plot the modulation index necessary to keep the Vdc constant at 1200v when the input power factor angle is varied from -60 degrees to 60 degrees.
Explain the process of commutation in a dc machine. Explain what are inter-poles and why they are required in a dc machine.
What is the potential with respect to infinity at a distance Z above the center of this disk?
a resistor is required for an application that requires its value to be no less than 7.1k ohms and not more than 7.9k ohms. determine the nominal value and the maximum tolerance of the resistor you could use. explain.
What are the copper losses and determine their annual cost of electricity and their corresponding costing per kWh
Consider a 4-bit counter made with JK flip-flops with preset and clear inputs. Describe the changes/additions that need to make the counter reset after counting to 1001. Be sure to state any assumptions that are made.
suppose that you have a balanced stereo signal in which the left and right channels have the same voltage amplitude 500 mVpp. This time, however, you want to be able to mix these two channels into a single inverted output
If the amplifier is fed from a voltage source Vsig having a resistance Rsig = 1kΩ, find the transfer funtion Vo/Vsig as a function of the complex-frequency variable s and hence the 3-dB frequency fH and the unity-gain frequency ft.
You are designing a general purpose integrated circuit oscillator that will operate at various frequencies, based on the external reactances the user supplies. You expect that the IC will be used as a fixed frequency oscillator in portable equipm..
1-phase 2-winding transformer is rated 30 kVA, 360/90 V, 60 Hz. A source connected to the 360-V winding supplies an impedance load connected to the 120-V winding. The load absorbs 15 kVA at 0.8 p.f. lagging
The message waveform uses a root-raised-cosine line code with α=1. The bandpass filter in the receiver front end has a rectangular frequency response with a bandwidth equal to the absolute bandwidth of the received signal.
The circuit will have as inputs a minimum of two inputs; the binary equivalent of two decimal numbers of not greater than (10,000)10. The circuit will also produce a minimum of two outputs, the quotient and the remainder.
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