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1. What are the efficiency requirements for the Energy Star label to be awarded for an air-to-air heat pump?
2. What are some advantages of the mini-split heat pump?
3. How should heat pump outdoor units be mounted in areas where snowfall accumulates?
The content of a 4-bit register is initially 1111. The register is shifted eight times to the left, with the sequence 00101011 as the serial input. The leftmost bit of the sequence is applied first. What is the content of the register after each s..
Determining the o/p level from an attenuator of know i/p, An attenuator has an attenuation of 10 dB over the frequency range 10 MHz to 1.0 GHz
The motor is operating at slip s = 0.04. Determine the input current, input power, mechanical power, and shaft torque (assuming that stray-load losses are negligible).
Design both inverters with an on voltage of 0.7v., and a DC operating point of Vin = 0.8v., Vout =2.5v. Compare the inverters AC transfer curve and their rise and fall times. Use a load capacitance of 10pF.
Two machines and a lighting load are connected in parallel to a 220 V, 60 Hz line. The first machine uses 40 kW of power at 0.81 power factor lagging. The second machine uses 27 kVA at 0.93 power factor leading. The lighting load consumes 13 kW.
An incident wave of light travels through glass (n = 1.4) to water (n = 1.33) at an angle of 350. a. What is the angle of reflection and refraction b. What is the critical angle for this system
The voltage and current for a circuit element are v(t) = 10 + 6 cos(377t + -60) - 7 cos(754t + 10) V & i(t) = 7 + 4 cos(377t + -20) + 5 cos(754t + 10), with the phase angles given in degrees.
Answer the following questions:1. Determine the voltage gain for the CE ampli?er in the following figure.2. If a load resistance of 600 ? is placed on the output of the ampli?er in the following figure, what is the maximum gain?
Discuss how can identify which resistances are in series and which ones are in parallel in a series-parallel circuit. How might this affect how you measure current and voltages in the circuit with a digital multimeter
General model of element is made up of a block diagram. - Give it and clearly show the components.
A sequential circuit hast two inputs (X1 and X2) and one output (Z). The output begins as 0 and remains a constant value unless one of the following inputs sequences occur: (a) The input sequence X1X2 =01,00 causes the output to become 0
A milliammeter is connected between points A and B in Figure 15. It measures 50 mA. If you move the meter and connect it between points C and D, how much current will it indicate? Between E and F?
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