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A 3-phase, 400 V, 6-pole, 50 Hz induction motor develops mechanical power of 20 kW at 985 rpm. Calculate:
(a) the rotor copper loss,
(b) the total input power, and
(c) rotor frequency.
The stator losses are equal to 1800 W. Neglect mechanical loss.
Assess the management, organization, and technology issues for using social media to engage with customers.
Get a well labeled diagram of pulse reflection techniques for;- typical system - idealised outgoing and reflected waveforms.
State the four groups of address lines that enable the microcontroller to communicate with the other devices in a typical computer based data acquisition system.
Explain why a voltage follower implemented with an op-amp is a useful circuit component. Explain how the nature of KCL allows the connection to a single op-amp input of multiple voltage signals, each through a resistor, to perform a summing functi..
Redesign the resistive load inverter. - Using the results of part (a), what is the input voltage range when the transistor is biased in the saturation region?
If a circuit has a 3.9 k ohms resistor and a 5 uF capacitor, find the current flow in the circuit at 0.005 seconds, if the maximum current flow in the circuit is 1.5 mA.
The unit step response of a linear time invariant system is s(t) = (1 - e-at)u(t). Where "a" is a positive, real valued constant. What is the impulse response of the system. What is the frequency response of the system.
Assuming a uniform current destiny, Find the inductance per meter of length of a coaxial conductor with and Inner conductor of a radius .5 cm, Outer conductor having an inner radius of 2.5 cm and and outer radius of 2.7 cm.
Two balanced three phase loads that are connected in parallel arefed by a three pahse line having a series impedence of 0.4+j2.7ohms per phase.one of the loads absorbs 560kva at 0.707 pf laggingand th eother 132kWat unity pf.
The friction and windage loss is 20W, the coreloss is 35W, and the field-winding loss is 30W. Determine the power angle and the efficiency of the motor when it delivers the ratedpower at a unity power factor.
An LVDT (Linear Variable Differential Transformer) is used in an accelerometer to measure seismic-mass displacement. The LVDT and signal-conditioning output is 0.31 mV/mm with a +/- 2 cm maximum core displacement.
You are planning to buy a $250,000 house and will take out a mortgage for 80% of the homes value. The term of your mortgage is 15 years and the interest rate is 4%, compounded monthly.
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