If a shunt motor running with a load has its...

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Question 1 of 203AqY1wxmAqmlJgqb7Esd

If a shunt motor running with a load has its shunt field opened, how would this affect the speed of the motor?

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3AqY1wxmAqmlJgqb7Esd

If a shunt motor running with a load has its shunt field opened, how would this affect the speed of the motor?

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🔍 Key Concepts

• Behavior of a DC shunt motor when the field circuit is weakened or lost • Relationship between field flux and motor speed at a given load • How back EMF and armature current change if the field is opened

💭 Think About

• In a shunt motor, if the field winding suddenly loses current, what happens to the magnetic field strength and, in turn, the speed needed to balance the applied voltage? • Think about whether a weaker field makes it easier or harder for the motor to turn under the same load. • Would opening the shunt field more likely make the motor slow down, lock up, or try to change speed drastically to maintain the electrical balance?

✅ Before You Answer

• Recall that for a DC motor, speed is roughly inversely proportional to field flux when voltage and load are fixed. • Consider whether losing field current makes the flux very small or very large. • Verify which option matches the typical warning about DC shunt motors operating with a lost or open field.

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Question 1 of 203AqY1wxmAqmlJgqb7Esd

If a shunt motor running with a load has its shunt field opened, how would this affect the speed of the motor?

Back

Question 1 of 20

3AqY1wxmAqmlJgqb7Esd

If a shunt motor running with a load has its shunt field opened, how would this affect the speed of the motor?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed