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A ¼-hp, 230-V, 60-Hz, four-pole, single-phase inductionmotor has the following parameters and losses: R1 = 10 , Xl1 = Xl2 = 12.5 ,R2 = 11.5 , and Xm = 250 . The core loss at 230 V is 35 Wand the friction and windage loss is 10W. For a slip of 0.05, determine the stator current, power factor, developed power, shaft output power, speed, torque, and efficiency when the motor is running as a single-phase motor at rated voltage and frequency with its starting winding open.
Q. An antenna with an effective noise temperature of 130 K couples through a waveguide that has a loss of 0.8 dB to a receiver. Find the effective noise temperature presented by th
create a matrix of 5x6. with identical columns and rows ranging from 200 to 1000 in equal increments
The energy consumption for a small factory is given at the end of the brief. a) Three commercial tariffs from an energy supplier are shown below. Using these (or other commercia
What is the output modes used in 8279? 8279 gives two output modes for selecting the display options. 1.Display Scan In this mode, 8279 gives 8 or 16 character-multiple
Define Magnetic field The area around a magnet is known as the magnetic field and it is in this area that the effects of the magnetic force formed by the magnet can be detected
Demodulators for FM Figure shows a block diagram of a general FM demodulator, which is implemented by generating an AM signal whose amplitude is proportional to the instantane
Q. What do you mean by FM Stereo? IT shows the block diagram of an FM stereo transmitter and an FM stereo receiver. The following notation is used: • f L (t), fR(t): Left a
Triode Mode When V GS > V th and V DS GS - V th ) The transistor is turned on, and a channel has been created that allows current to
what is rom organization
A circuit having of a resistor connected in series with a 0.5µF capacitor and has a time constant of 12 ms. Verify: (a) The value of the resistor (b) The capacitor voltage
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