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Questions and Answers
In a series DC motor, what is the relationship between torque and armature current?
In a series DC motor, what is the relationship between torque and armature current?
- T ∝ √Ia
- T ∝ Ia^2 (correct)
- T ∝ 1/Ia
- T ∝ Ia
What type of applications are series DC motors suitable for?
What type of applications are series DC motors suitable for?
- Low starting torque
- Constant speed operations
- High starting torque and heavy torque overloads (correct)
- Low power consumption
In a compound DC motor, what happens to the speed when there is an increase in the strength of the series field?
In a compound DC motor, what happens to the speed when there is an increase in the strength of the series field?
- The speed increases (correct)
- The speed decreases
- The speed fluctuates
- The speed remains constant
What is the relationship between voltage, speed, and flux in a DC motor?
What is the relationship between voltage, speed, and flux in a DC motor?
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How does the no-load speed of a shunt DC motor vary with the strength of the shunt field?
How does the no-load speed of a shunt DC motor vary with the strength of the shunt field?
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