What occurs if the load is removed from an...

What occurs if the load is removed from an...

Question 1 of 27070

Q

What occurs if the load is removed from an operating series DC motor?

A

It will stop running.

B

Speed will increase slightly.

C

No change occurs.

D

It will accelerate until it falls apart.

Question 1 / 27070g0IYd2uvaMatgzghj4H5

Question 1 of 27070g0IYd2uvaMatgzghj4H5

What occurs if the load is removed from an operating series DC motor?

Question 1 of 27070

Study area:

Study area:

Q

What occurs if the load is removed from an operating series DC motor?

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🔍 Key Concepts

• Series DC motor relationship between load and speed • How armature current and torque change when mechanical load is reduced • Why series motors are dangerous to run with no load

💭 Think About

• Think about what happens to the current drawn by a series motor when the load is suddenly reduced. Does it go up or down? • If the current changes, what happens to the strength of the field and therefore to the motor’s speed? • Why are series DC motors usually required to always have a mechanical load connected?

✅ Before You Answer

• Recall that in a series DC motor, the field winding and armature are in series, so the same current flows through both. • Consider whether reduced load leads to more or less back EMF, and how that affects speed. • Verify which option describes a potentially dangerous overspeed condition for a series DC motor when the load is taken off.