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A three-phase, wound-rotor induction machine, with its shaft rigidly coupled to the shaft of a three-phase synchronousmotor, is used to change balanced 60-Hz voltages to other frequencies at the wound-rotor terminals brought out through slip rings. Both machines are electrically connected to the same balanced three-phase, 60-Hz source. Let the synchronous motor, which has four poles, drive the interconnecting shaft in the clockwise direction, and let the eight-pole balanced three-phase stator winding of the induction machine produce a counterclockwise rotating ?eld, i.e., opposite that of the synchronous motor. Determine the frequency of the rotor voltages of the induction machine.
Q. JFET Common Drain Amplifier? The common drain FET amplifier is similar to the common collector configuration of the bipolar transistor. A general common drain JFET amplifier
When three resistors R1, R2 and R3 are connected in parallel as shown in the diagram. For these resistors the equivalent resistance is given by: a. Derive a rule to
How address and data lines are demultiplexed in 8085? AD0-AD7 lines are multiplexed and the lower half of address A0-A7 is available only during T1 of the machine cycle. This
Properties of Conductors and Insulators: This unit provides the basic characteristics or properties of the most common materials which are classified as semiconductor, conduct
how emitter current equal to collector current
Q. A shift register can be used as a binary (a) divide by-2, and (b) multiply-by-2 counter. Explain. Show a block diagram of a 4-bit shift-right register using JKFFs.
1. Find the slope and the y-intercept of the line whose equation is 5x + 6y = 7. 2. Find the equation of the line that is parallel to 2x + 5y = 7 and passes through the midpoint
A pure sine wave with a frequency of 100Hz is sampled at 150Hz. At which one of the following frequencies would you expect an alias?
general functions of time base generator
a. Given a timer with a terminal count and a clock frequency of 10 MHz measure the following: (i) Range & Resolution (ii) Terminal count values needed to measure 3ms interval
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