
Torque equation of SM

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Hard

monika t
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the torque equation of a synchronous motor?
A) T = P/ω
B) T = P/2πf
C) T = kφI
D) T = V^2/R
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relationship between torque and armature current in a synchronous motor?
A) T is proportional to Ia
B) T is inversely proportional to Ia
C) T is independent of Ia
D) T is proportional to Ia^2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a synchronous motor, what is the effect of increasing the excitation current?
A) Increases the torque
B) Decreases the torque
C) Has no effect on the torque
D) Causes the motor to stall
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
n a synchronous motor, what is the relationship between the stator voltage and the torque?
A) T is proportional to V
B) T is inversely proportional to V
C) T is independent of V
D) T is proportional to V^2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The torque produced by a synchronous motor is proportional to which of the following?
A. Magnetic field strength
B. Armature current
C. Power factor
D. All of the above
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The torque of a synchronous motor can be controlled by:
A. Changing the excitation current
B. Changing the load
C. Changing the power factor
D. All of the above
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a synchronous motor, the rotor rotates at:
A. The same speed as the stator magnetic field
B. A speed slightly slower than the stator magnetic field
C. A speed slightly faster than the stator magnetic field
D. A random speed
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