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Physics 200 2015-2016
Chapter 22-23 – Magnets & Electromagnetic Induction
Class
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42
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Date
04-05-16
B
04-06-16
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04-07-16
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04-08-16
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Topics & Activities
22.1. Magnets
• Describe the difference between the north
and south poles of a magnet.
• Describe how magnetic poles interact with
each other.
22.2. Ferromagnets and Electromagnets
• Define ferromagnet.
• Describe the role of magnetic domains in
magnetization.
• Explain the significance of the Curie
temperature.
• Describe the relationship between
electricity and magnetism.
Magnet Demos
22.3. Magnetic Fields and Magnetic Field
Lines
• Define magnetic field and describe the
magnetic field lines of various magnetic
fields.
22.4. Magnetic Field Strength: Force on a
Moving Charge in a Magnetic Field
• Describe the effects of magnetic fields on
moving charges.
• Use the right hand rule 1 to determine the
velocity of a charge, the direction of the
magnetic field, and the direction of the
magnetic force on a moving charge.
• Calculate the magnetic force on a moving
charge.
Bill Nye DVD - Magnetism
22.5. Force on a Moving Charge in a Magnetic
Field
• Describe the effects of a magnetic field on
a moving charge.
• Calculate the radius of curvature of the
path of a charge that is moving in a
magnetic field.
22.6. The Hall Effect
• Describe the effect of crossed E and B
fields.
Mass Spectrometer Design
Assignment Due
 R&N – 22.1-22.2
Magnets,
Ferromagnets and
Electromagnets
 R&N – 22.3-22.4
Magnetic Field
Lines and Force on
a Moving Charge
 R&N – 22.5-22.6
Circular Motion in a
Magnetic Field
Lines and Crossed E
and B Fields
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04-14-16
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04-25-16
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04-26-16
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Mass Spectrometer Design
Mass Spectrometer Design
22.7. Magnetic Force on a Current-Carrying
Conductor
• Describe the effects of a magnetic force on
a current-carrying conductor.
• Calculate the magnetic force on a currentcarrying conductor.
PhET – Magnets and Electromagnets
NOVA DVD – The Magnetic Storm
22.8. Torque on a Current Loop: Motors and
Meters
• Describe how motors and meters work in
terms of torque on a current loop.
• Calculate the torque on a current-carrying
loop in a magnetic field.
23.1. Induced Emf and Magnetic Flux
• Calculate the flux of a uniform magnetic
field through a loop of arbitrary orientation.
• Describe methods to produce an
electromotive force (emf) with a magnetic
field or magnet and a loop of wire.
23.2. Faraday’s Law of Induction
• Calculate emf, current, and magnetic fields
using Faraday’s Law.
Induction Demos
 R&N – 22.7
Magnetic Force on
Current-Carrying
Wire
 R&N - 22.8. Torque
on a Current Loop:
Motors and Meters
 R&N – 23.1-23.2
Induced Emf,
Magnetic Flux &
Faraday’s Law of
Induction
Electricity and Power Plants -
https://www.youtube.com/watch?v=WwOWwR3smPY
April Break 
Making a Toy Motor
23.5. Electric Generators
• Calculate the emf induced in a generator.
• Calculate the peak emf which can be induced
in a particular generator system.
23.7. Transformers
• Explain how a transformer works.
• Calculate voltage, current, and/or number of
turns given the other quantities.
Making a Toy Motor
23.5. Electric Generators
• Calculate the emf induced in a generator.
• Calculate the peak emf which can be induced
in a particular generator system.
23.7. Transformers
• Explain how a transformer works.

 R&N – 23.5 Electric
Generators & 23.7
Transformers
 R&N – 23.5 Electric
Generators & 23.7
Transformers
• Calculate voltage, current, and/or number of
turns given the other quantities.
PhET – Faraday’s EM Induction Lab
Chapter 22 Practice Problems
Chapter 23 Practice Problems
How A Hydo Generator Works:
https://www.youtube.com/watch?v=Lx6UfiEU3Q0
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04-27-16
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04-28-16
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04-29-16
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Motors & Generators:
http://www.youtube.com/watch?v=d_aTC0iKO
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Elon Musk Talks About Cross Country Road Trip:
http://www.cbsnews.com/news/elon-musktalks-about-electric-car-cross-countrymilestone/
Chapter 22-23 Test Review
Chapter 22-23 Test