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A permanent magnet DC motor is being considered for use as a drive motor for a vehicle. The motor is known to have the following properties
No load speed @ 100 V = 2000 rpm torque at 20 A = 10 Nm R = 0.5 Ω
a) What is the full load (10 Nm) speed when the machine runs with the rated voltage of 100 V?
b) What terminal voltage V is needed to provide the cruising speed requirement of 2500 rpm with a torque of 10 Nm?
c) What terminal voltage V is needed to provide a braking torque of 10 Nm at zero speed ?
d) If the armature of this machine were short circuited (V = 0), what would be the current and torque if it was driven at 1000 rpm by the moving vehicle.
Q. (a) An audio amplifier with R i = 10 k, R o = 0, and ¯A(ω), as shown in Figure (a), is used in the circuit shown in Figure with R S = 1 k,R L = 16 , and C = 0.2 µF. Sk
2. A 6 pole lap-wound armature having 720 conductors, rotates in a field of 20.35 mWb. (a) If the induced current is 72 A, what is the torque developed by armature? (b) If the indu
EI Enable Interrupts Instruction The interrupt enable flip flop is set and all the interrupts of 8085 microprocessor are enabled which are disabled by DI instructi
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how does it work explain with figure?
Machine Control Instructions Instructions used to control various machine operations are kept in this group.
For carry Flag JC ( jump on Carry ) and JNC (Jump on No carry ) Instructions : JC transfer the execution of the program to the specified memory address if carry
Explain multimeter A multimeter, or universal instrument, may be used to measure voltage, current and resistance.
What is the clock frequency of 8086? Internal clock Frequency 5 MHz 8MHz External Clock Frequency 15MHZ 24MHZ
Q. Power Angle and Performance Characteristics? The real and reactive power delivered by a synchronous generator, or received by a synchronous motor, can be expressed in terms
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