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An inexpensive analog voltmeter is used to measure the voltage across terminals a and b of the circuit shown in Figure 6-90. If the voltmeter indicates that the voltage Vab = 1.2 V, what is the actual voltage of the source if the resistance of the meter is 50 kΩ?
A capacitor is made with very large plates separated a distance d. The potential between the plates is V=1000 volts and d = 1mm. a) Calculate the pressure the plates exert on the air between the plates.
Do either or both of the reasons you gave in part (a) above also apply to a point to point voice link using frequency modulation? c. Which parameter of an FM transmission determines whether it is wideband or narrow band?
Find values of the intrinsic carrier concentration ni for silicon at -70, 0, 20, 100, and 125 °C. At each temperature, what fraction of the atoms is ionized. Recall that a silicon crystal has approximately 5×1022 atoms/cm3.
A paddle wheel within the tank is rotated until the pressure inside rises to 20 psia. During the process 20 Btu of heat is lost to the surroundings. Determine the paddle-wheel work done. Neglect the energy stored in the paddle wheel.
Assume both antennas are ideal.
Suppose the gain between the transmit antenna and each of the receive antennas is constant, equal to 1. What is the capacity of the channel? What is the performance gain compared to a single receive antenna system? What is the nature of the perfor..
A line charge with linear charge density T is placed parallel to, and a distance R away from, the axis of a conducting cylinder of radius b held at a fixed voltage such that the potential vanishes at infinity.
A CCD camera chip of dimensions 7x7 mm, and having 1024x1024 elements, is focused on a square, flat area, located 0.5m away. How many line pairs per mm will this camera be able to resolve. The camera is equipped with a 35-mm lens.
A 345-kV, 3-phase transmission line delivers 100 MVA, 0.866 lagging, to a wye connected load. Calculate the following: a. The total real and reactive power delivered to the load. b. The real and reactive power per phase.
where R is the resistance at temperature T(measured in C), R0 is the resistance at T = 0 C and α is a temperature coefficient. For copper, α = 4 * 10-3 C-1 . At what temperature is the resistance greater than R0 by 1 percent
A wattmeter connected into the line gives a reading of 2765W. If a capacitor have a reactance of 30ohms is connected in parallel with the motor. Calculate the total reactive power absorbed by the capacitor and motor.
description in the process of processor development functional verification is a crucial step that must be conducted
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