Recent Lessons

Show all results for ""

Induction Motor Basics

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Download our mobile app to listen on the go

Get App

Questions and Answers

Why does an induction motor need no electrical connections to the rotor?

Because it operates on a wireless power transmission system
Because it has a built-in battery for the rotor
Because it uses a separate power source for the rotor
Because the rotor obtains electric current by electromagnetic induction from the stator winding (correct)

What type of electric motor is an induction motor?

AC electric motor (correct)
DC electric motor
Hybrid electric motor
Mechanical electric motor

Which type of rotor can an induction motor have?

Brushed type or brushless type
Permanent magnet type
Hybrid type
Wound type or squirrel-cage type (correct)

For what are single-phase induction motors extensively used?

Smaller loads such as garbage disposals and stationary power tools (B) Signup and view all the answers

Why are three-phase squirrel-cage induction motors widely used as industrial drives?

Because they are self-starting, reliable, and economical (C) Signup and view all the answers

What term describes the effect of inducing a varying electromotive force (EMF) across coils in a transformer's core due to a varying magnetic flux?

Faraday's law of induction (D) Signup and view all the answers

What type of transformer is used to decrease voltage levels?

Step-down transformer (D) Signup and view all the answers

What is the main purpose of using transformers in signal-processing circuits?

To couple stages of signal-processing circuits (B) Signup and view all the answers

What type of transformer is designed to have no electrical connection between its primary and secondary windings?

Isolation transformer (D) Signup and view all the answers

Which property does an ideal transformer possess?

Linearity, losslessness, and perfect coupling (D) Signup and view all the answers

Flashcards are hidden until you start studying