10 Questions
What happens to the motor speed when the mechanical load is increased?
Motor speed starts to decrease
What happens to the Back EMF when the mechanical load is increased?
Back EMF decreases (proportional to speed)
What happens to the current absorbed from the supply when the mechanical load is increased?
Current increases
What happens to the force and torque when the current absorbed from the supply increases?
Force and torque increase
What are the characteristics of a Shunt DC Motor?
Torque vs Current, Speed vs Current, Speed vs Torque
What happens to the motor speed when the mechanical load is increased?
Motor speed starts to decrease
What happens to the Back EMF when the mechanical load is increased?
Back EMF decreases (proportional to speed)
What effect does increasing the mechanical load have on the current absorbed from the supply?
Current absorbed increases
What happens to the force and torque when the current absorbed from the supply increases?
Force and torque increase
What is the relationship between motor speed and Back EMF when the mechanical load is increased?
They have an inverse proportional relationship
Test your knowledge of DC motors with questions on principles of operation, motor starting torque equation, types, characteristics, speed control, power flow, and efficiency.
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