The rotor speed of a permanent magnet motor is O Inversely proportional to the field current O Proportional to the flux density a linear function of the armature voltage O Proportional to the armature current Question 4 For which applications below are DC series motors more suitable? O Cordless drill O Cordless saw Portable fan Electric scooter Electric water pumps
The rotor speed of a permanent magnet motor is O Inversely proportional to the field current O Proportional to the flux density a linear function of the armature voltage O Proportional to the armature current Question 4 For which applications below are DC series motors more suitable? O Cordless drill O Cordless saw Portable fan Electric scooter Electric water pumps
Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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![The rotor speed of a permanent magnet motor is
O Inversely proportional to the field current
O Proportional to the flux density
a linear function of the armature voltage
O Proportional to the armature current
Question 4
For which applications below are DC series motors more suitable?
O Cordless drill
O Cordless saw
Portable fan
Electric scooter
Electric water pumps](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fba819449-1579-4c1b-b57a-6d7fca693070%2F5ca98215-af90-4c22-9fd5-c4e237c88eb3%2Fana3e2f_processed.png&w=3840&q=75)
Transcribed Image Text:The rotor speed of a permanent magnet motor is
O Inversely proportional to the field current
O Proportional to the flux density
a linear function of the armature voltage
O Proportional to the armature current
Question 4
For which applications below are DC series motors more suitable?
O Cordless drill
O Cordless saw
Portable fan
Electric scooter
Electric water pumps
![The torque developed in a universal motor is proportional to
O the armature current
the square of the armature current
the square-root of the armature current
O inverse of the armature current
Question 2
The dynamic behavior of a universal motor is similar to
O parallel excited DC motors
Asynchronous AC motors
O permanent magnet DC motors
O series excited DC motors](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fba819449-1579-4c1b-b57a-6d7fca693070%2F5ca98215-af90-4c22-9fd5-c4e237c88eb3%2Fo41gbje_processed.png&w=3840&q=75)
Transcribed Image Text:The torque developed in a universal motor is proportional to
O the armature current
the square of the armature current
the square-root of the armature current
O inverse of the armature current
Question 2
The dynamic behavior of a universal motor is similar to
O parallel excited DC motors
Asynchronous AC motors
O permanent magnet DC motors
O series excited DC motors
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