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Consider an industrial load that absorbs 40 kW of power with power factor 0.8 lagging from a 60-Hz transmission line of voltage VL= 240<15° V rms VL . To improve the power transmission efficiency, a bank of capacitors having combined capacitance 220 micro(uF) is placed in parallel with the load. Find the effective power factor at the load.
Draw a strain gauge circuit and its external components to attach to a conveyor mounted only at the ends to measure the load at the center of the conveyor. What type of testing would you need to do to establish a baseline and calibration curve for..
A 150MW alternator generates an open-circut line-t0-line voltage of 12kV at nomial DC excitiation. When the terminals are placed in short-circuit the resulting current per phase is 8000A.
Two data streams are coming serially to a system. These two streams are carefully observed and if considering any three bits from each stream, we observe that these two input streams are equal ; the FSM gives a signal to an alarm system.
For a given lithium ion battery, it can supply 0.85 ampere-hours, or 850 (mAh) with a constant output voltage of 3.6 (V). How much energy is stored in this lithium ion battery. How much energy is imparted to an electron that flows
Calculate the numerical value of the mutual capacitance of a square parallel plate capacitor whose dimensions are 1 mm X 1 mm if the two plates are separated by a distance of 2 mm. The relative dielectric constant of the material between the two p..
Current and average power delivered to the load, A load has a 20 ohm resistor and a 4 henry inductor connected in series. It is connected to a power source with v(t)= 100cos50t
Three two-input "AND" gates have their outputs connected to an "OR" gate. The first "AND" gate has each of its inputs at logic HIGH level. The second "AND" gate has each of it's inputs at logic LOW level.
(a) If the excitation volatge Eo is equal to the terminal voltage ( 4kv ), what is the maximum real power which the motor can deliver without losing synchronism (b) What is the rotor pole shift in electrical degrees
Calculate the value of vL developed across a 300 H coil when the instantaneous rate of change in component current equals 500 mA/s.
Given the electric field E=4xux+2yuyV/m find the voltage between the points A(2,0) and B(0,2) integrating along: (a) straight line AB; (b) broken line AOB, where O(0,0).
A network router connects multiple computers together and allows them to send messages to each other. If two or more computers send messages simultaniously, they collide and the messages must be resent. Design a collision free circuit for a router..
To digitally manipulate information we must encode it using binary numbers. Consider an encoding for playing cards. There are 52 cards in a deck and they are divided
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