If a DC motor has its armature and field...

Question 1 / 270705eccefa3bacbc34ba4d480a8

Question 1 of 270705eccefa3bacbc34ba4d480a8

If a DC motor has its armature and field connected across a resistor when the motor is disconnected from its power supply, what statement is true?

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Question 1 of 27070

If a DC motor has its armature and field connected across a resistor when the motor is disconnected from its power supply, what statement is true?

🔍 Key Concepts

• DC motor braking methods (dynamic braking vs plugging vs regenerative braking) • Effect of connecting armature and field across a resistor after power is removed • Difference between starting connections and braking connections for DC motors

💭 Think About

• What happens to a DC motor mechanically and electrically when its power supply is removed but its terminals are connected across a resistor? • Does the resistor connection cause the motor to speed up, slow down, or simply sit idle, and why? • Which of the listed options specifically describes a condition that occurs AFTER the motor has been disconnected from its supply?

✅ Before You Answer

• Verify which option refers to a braking or slowing down process rather than starting or reversing • Check which methods (starting, reversing, heating, braking) would logically involve using the motor as a generator feeding a resistor • Eliminate any choices that clearly apply only when the motor is being started or reversed under power rather than when it is disconnected

Question 1 of 27070

If a DC motor has its armature and field connected across a resistor when the motor is disconnected from its power supply, what statement is true?

The motor has the proper connections for across the line starting.

The motor has the proper connections for an automatic strip heater.

The motor is set up for a reversing controller circuit.

The motor will slow down by the process of dynamic braking.

Question 1 / 270705eccefa3bacbc34ba4d480a8

Question 1 of 270705eccefa3bacbc34ba4d480a8

If a DC motor has its armature and field connected across a resistor when the motor is disconnected from its power supply, what statement is true?

Back

Question 1 of 27070

If a DC motor has its armature and field connected across a resistor when the motor is disconnected from its power supply, what statement is true?