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Q. The magnetization curve taken at 1000 r/min on a 200-V dc series motor has the following data:
Field current, A: 5 10 15 20 25 30
Voltage, A: 80 160 202 222 236 244
The armature-circuit resistance is 0.25 and the series-field resistance is 0.25 . Calculate the speed of the motor (a) when the armature current is 25 A, and (b) when the electromagnetic torque is 36 N · m. Neglect the armature reaction.
Q. Can you explain Twos complement addition? 2's Complement Addition Two's complement addition follows the same rules as binary addition. For example, 5 + (-3) = 2
Refer to Figure 100. Assume MKS units. Given: R1= 4, R2=14, R3= 9, I4= 8, I5= 7. Determine: Ieq, Req, and V3.
Define the Objectives of Load Flow Analysis The objectives of load flow analysis are: (i) To analyse an existing power system, future expansion or a new power system plan.
Explain the Synchronous Machines? A synchronous machine, unlike an induction (or asynchronous) machine, only develops torque at a fixed, so called, synchronous speed - n s whi
a) What is meant by Ripple Voltage? Measure the Ripple Voltage Amplitude, Frequency and DC Offset b) Describe how Ripple Voltage could be decreased.
hi, i want to know the transfer function of a radiator
Why dummy coils are used in generators
Q. The effective area of a dipole is given by A e =0.13λ 2 . Find the effective area of a half-wave dipole at 3 GHz.
Explain the Synchronous Compensators These are synchronous motors running without mechanical loads (or with load if required). Similar to the synchronous generators, they can a
Q. Signals and spectral analysis? Figure shows the functional block diagram of a signal-processing system. The information source may be a speech (voice), an image (picture), o
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