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Determine the amount of power dissipated in 3 kohm resistor? The circuit diagram and question is given in the picture file.
Basics problems of Induction motor, The frequency of the induced rotor currents in the rotor of a 60 Hz induction, machine is 2 Hz. Furthermore, the fields in the air gap turn at -40 rpm with respect to the rotor.
The current in a device varies with time according to the function: i(t)= 3e^(-t/T) A. Where T is the time constant. How many time constants are required for the current to drop to 250 mA
A volume is divided into two equal parts by a partition. The left volume has N atoms. The atoms have a mass m. A hole of area A is made in the partition at time t=0 A)Develop an expression for the number of white atoms on each side of the partition..
What are Power Factor improvement Methods ? and what Their advantages & Disadvantages ?
The current entering the positive terminal of a device is 5e-4t A and the voltage across the device is 2 di/dt V. Find the charge delivered to the device between t = 0 and t = 2 s.
The speed of a 10HP, 230V, 1200 rpm separately excited DC motor is controlled by a 1-phase full-wave bridge converter. The rated armature current of the motor is 10 A. The armature resistance is 0.25 Ohm and the armature inductance is 10 mH.
Suppose we used the thumb rule that the optical line of sight distance from an antenna h meters high to the horizon,in kilometers is 4√h. what is the radius of the earth in kilometeres that would justify this approximation
A system is described by the differential equation ty'(t)-8y(t)=x(t). Classify the system as to linearity, time-invariance and stability. A system is described by the equation y(t)= \(\int_{t/3}^{-\infty}\)x( \(\lambda\)) d.
Calculate (i) the parallel capacitance C1 that would be required to change the power factor of the total load on the supply to 0.80 lagging and (ii) find the value of the supply current at this power factor.
A piston-cylinder device contains carbon dioxide CO2 (molar mass = 46 g/mol) as shown in the figure. The cross-section area of the piston is 0.25 m2 and the initial cylinder height is 50 cm. CO2 is initially at 40 bar and 500 oC (state 1).
1) Determine the transfer of second-order highpass filter with a cutoff frequency of 900 Hz and passband gain of 1 using a butterworth type. 2) Design a filter for your transfer function using the sallen-Key topology.Find all the values of the circ..
The output voltage of an AM transmitter is given by 500(1+.4sin3140t)sin6.28x107t. This voltage is fed to a load of 800 ohms. Determine the following. The carrier frequency The modulating frequency
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