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A large induction motor is usually started by applying a reduced voltage across themotor; such a voltage may be obtained from an autotrans- former. A motor is to be started on 50% of full- load torque, and the full-voltage starting current is 5 times the full-load current. The full-load slip is 4%. Determine the percentage reduction in the applied voltage (i.e., the percentage tap on the auto transformer).
State and prove parallelogram law of forces and explain it''s applications
Explain Limit Signal Spectrum to Prevent Aliasing? The sampling frequency should at least be two times that of the highest frequency in the incoming signal to avoid aliasing. T
If aluminium and copper pipes are of same length and diameter ... same magnet dropped through them...in copper it takes more time to come out of other end, i myself have done this.
Q. Derive the equations of the self bias circuit? A circuit which is used to establish a stable operating point is the self biasing configuration. The circuit is shown in Fig
Circuits Typical electronics circuits are created out of a basis set of primitive elements such as capacitors, voltage sources, resistors, transistors and inductors. T
Ask qu1. If the resistor Radj is adjusted to 175O what is the rotational speed of the motor at no-load conditions? 2. Assuming no armature reaction, what is the speed of the motor
Q. Show the Enhancement operation of p-channel enhancement mosfet? As the gate terminal is insulated from the channel by the silicon dioxide layer, we can also apply a negative
Q. Show an arrangement for multiplexing 64-to-1 by using four 16-to-1 multiplexers and one 4-to-1 multiplexer.
Illustrate VI Characteristics of PN junction diode (10) Illustrate Half Wave Rectifier. Disadvantage of Half Wave Rectifier. Determine ripple factor of Half Wave Rectifier.
Derive the transfer function of ward Leonard System
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