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MCQ 1. The attraction capacity of electromagnet will a) Increase if the flux density decreases b) Increase if the flux density increases c) Increase if the core area increases d) Increase if the core length increases 2. The magnetization and applied field in ferromagnetic materials are related a) Linearly b) Non-linearly c) Parabolically d) Sinusoidally 3. The heat generated by an electric iron is a) Reactive power b) True power c) Apparent power d) Reactive and power 4. If the current is passed through a conductor which of the following phenomenon

MCQ 1. The attraction capacity of electromagnet will a) Increase if the flux density decreases b) Increase if the flux density increases c) Increase if the core area increases d) Increase if the core length increases 2. The magnetization and applied field in ferromagnetic materials are related a) Linearly b) Non-linearly c) Parabolically d) Sinusoidally 3. The heat generated by an electric iron is a) Reactive power b) True power c) Apparent power d) Reactive and power 4. If the current is passed through a conductor which of the following phenomenon

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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MCQ 1. The attraction capacity of electromagnet will a) Increase if the flux density decreases b) Increase if the flux density increases c) Increase if the core area increases d) Increase if the core length increases 2. The magnetization and applied field in ferromagnetic materials are related a) Linearly b) Non-linearly c) Parabolically d) Sinusoidally 3. The heat generated by an electric iron is a) Reactive power b) True power c) Apparent power d) Reactive and power 4. If the current is passed through a conductor which of the following phenomenon will be observed? a) The magnetic field will be developed in the conductor b) The magnetic field and heat is developed in the conductor c) The only heat is developed in the conductor d) The molecules of the conductor attract each other 5. Which lines of forces produced by two magnetic fields, the field a) Is stronger where the lines of force are in the same direction b) Is stronger where the lines are in opposite direction c) Has the same strength as for one magnet d) Is weakest where the lines are in the same direction 6. An alternating current can induce voltage because it has a) High r.m.s. value b) Varying magnetic field c) Stronger field than direct current d) Constant magnetic field
Transcribed Image Text:MCQ 1. The attraction capacity of electromagnet will a) Increase if the flux density decreases b) Increase if the flux density increases c) Increase if the core area increases d) Increase if the core length increases 2. The magnetization and applied field in ferromagnetic materials are related a) Linearly b) Non-linearly c) Parabolically d) Sinusoidally 3. The heat generated by an electric iron is a) Reactive power b) True power c) Apparent power d) Reactive and power 4. If the current is passed through a conductor which of the following phenomenon will be observed? a) The magnetic field will be developed in the conductor b) The magnetic field and heat is developed in the conductor c) The only heat is developed in the conductor d) The molecules of the conductor attract each other 5. Which lines of forces produced by two magnetic fields, the field a) Is stronger where the lines of force are in the same direction b) Is stronger where the lines are in opposite direction c) Has the same strength as for one magnet d) Is weakest where the lines are in the same direction 6. An alternating current can induce voltage because it has a) High r.m.s. value b) Varying magnetic field c) Stronger field than direct current d) Constant magnetic field
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