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A 50 kVA, 2200/110 V transformer when tested gave the following results:OC test, measurements on the LV side:400 W, 10 A, 110 V SC test, measurements on the HV side; 808 W, 20.5 A, 90 V
Compute all the parameters of the equivalent circuit referred to the HV and LV sides of the transformer. Also calculate % voltage regulation and efficiency at full load and 0.8 pf lagging.
A centrifugal pump with the dimensions r2 = 2.5 in., b2 = 0.40 in., b2 = 60°, is pumping kerosene (S = 0.80) at a rate of 2 gal/sec and rotating at 2000 rpm. For "best design" entry conditions, determine the theoretical pressure head rise and flui..
An initially charged capacitance discharges through a resistance. At one time constant, what percentage of the initial voltage reamins What percentage of the initial stored energy remains
task 11 describe the elements of communication systems2 explain the characteristics of electromagnetic waves and their
A 1/10hp motor has a 1000 rpms with 20v across the armature and series winding there are three speed control switches. The motor speed decreases linearly what are the four speeds available if each resistor is .54 ohms.
An LED with a rated range of Vf = 1.4 V to 1.8 V at If = 20 mA is connected to a driver circuit with a peak output of 14 V. What value of current. limiting resistor would be needed to limit the LED current to a maximum value of 20 mA.
A "ferrite" having a relative permeability of 50 H / m, that operates with flux densities sufficiently small, may be considered a single material. If the magnetic flux density in the material is B = 0.05 T, H and M. halle How to compare the values
in the process of sampling an analog signal g(t) is multiplied by a periodic train of rectangular pulses c(t)each of unit area ,given that the pulse repetition frequency of this periodic train is fs and the duration of each rectangular pulse is T ..
Due to an Internet configuration error, packets sent from New York to Los Angeles are routed through El Paso, Texas with probability 3/4. Given that a packet is routed through El Paso, suppose it has conditional probability 1/3 of being dropped.
Efficiency of MOSFET circuit provide in datasheets of any product is measured at transient state of my output node or staedy state?
1) What is the dynamic range for an 8-bit ADC 2) A device that responds to a small current or voltage change by activating a mechanical switch allowing a larger amount of current flow is a: a) transistor. b) transducer. c) solenoid. d) relay.
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 produce a minimum of two outputs, the quotient and the remainder.
A 220V dc shunt motor draws 10A at 1800rpm. The armature circuit resistance is .2ohm and the field winding resistance is 440 ohm.what is the torque developed by the motor
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