# Physics: Intro to Electricity & Magnetism

Free tutorial
Rating: 4.5 out of 5 (1,118 ratings)
21,858 students
Physics: Intro to Electricity & Magnetism
Free tutorial
Rating: 4.5 out of 5 (1,118 ratings)
21,866 students
Explain how objects get electrically charged, both with and without touching other charged objects.
Set up and solve problems involving Coulomb's Law
Explain how the electric field is independent of the test charge
Solve problems involving electric charges moving through electric fields
Determine the electric fields created by point charges and charge distributions

### Requirements

• Students should already understand the following math concepts: trigonometry, vectors, algebraic manipulation, and basic calculus derivatives and integrals.
Description

This course introduces the fundamental concepts of electric charge, electric force, and electric fields, using hand-drawn animations.  This is excellent for students who are taking a physics class but need extra help understanding the material, whether it's because your teacher is hard to understand, you miss some lectures, or you'd simply like a fresh perspective.

Master the Core Concepts of Electricity & Magnetism in this Introductory Course

• Learn the fundamental concepts, electric charge and electric field, that help the rest of the course go more smoothly.
• Understand how charging by induction really works so you can guarantee you'll get those grades on your unit test.
• Explain how the electric field is independent of the test charge.
• Solve problems involving electric charges moving through electric fields.

This course will boost your physics grades by clearly explaining the fundamental introductory concepts and giving insight into what sorts of difficulties professors like to introduce in exams.  Here, you will learn all about the first two chapters, on electric charge and electric fields, of a standard physics course on electricity and magnetism.  The course author uses his experience teaching college physics to highlight the key ideas and dangerous misconceptions while having some fun with hand-drawn animations and some goofy examples.

At the end of this course, you will have a solid understanding of electric charges and electric fields, and you will know what mistakes to avoid so you can get better grades on your next test or exam.

Who this course is for:
• This course is ideal for students who are already taking a physics course and need another perspective, or who need to catch up on missed lectures.
• This course is also helpful for students who plan to take electricity and magnetism in the near future and want a sneak preview of what's coming.
• This course can also be helpful for new physics teachers who are looking for ideas of how to present the concepts in different ways.
Course content
9 sections • 46 lectures • 3h 45m total length
• Course Introduction
01:43
• Practice Activities
00:16
• Introduction to Electric Charge
03:41
• Conductors, Insulators, and Charging
06:44
• Charge Polarization
04:49
• Charging by Induction
02:58
• Coulomb's Law
05:43
• Introduction to Electric Fields and the Test Charge
10:33
• Electric Field of a Point Charge
10:34
• Electric Field Lines
02:42
• Motion of a Point Charge in a Constant Uniform Electric Field
06:28
• Electric Field of a Continuous Charge Distribution
09:37
• Introducing the Permittivity Constant
01:16
• Introduction to Gauss' Law
01:37
• What is Flux?
04:58
• Gauss' Law and Applications to Charged Insulators
02:25
• Three Key Ideas about Conductors in Electrostatic Equilibrium
13:36
• Introduction to Electric Potential and Electric Potential Energy
02:08
• Electric Potential
04:00
• Electric Potential Energy
03:38
• Electric Potential Energy of a System of Point Charges
04:11
• Equipotential Curves
04:35
• Electric Field -> Potential Difference
02:32
• Potential Difference -> Electric Field
04:03
• Introduction to DC Circuits Without Capacitors
02:02
• Circuit Elements and Electric Current
06:41
• Using a Voltmeter and/or Ammeter
05:50
• Equivalent Resistance - Series and Parallel
07:41
• Kirchoff's Current Law (Junction Rule)
03:37
• Kirchoff's Voltage Law (Loop Rule)
11:00
• Ideal vs Real emf
02:55
• Introduction to Capacitors and Capacitance
01:07
• What is a Capacitor? What about Capacitance?
06:47
• Equivalent Capacitance - Capacitors in Series
07:53
• Equivalent Capacitance - Capacitors in Parallel
03:31
• Special Case: Parallel Plate Capacitor
05:04
• Energy Stored in a Capacitor
06:24
• RC Circuits (Charging and Discharging)
11:30
• Dielectrics
06:56
• Introduction to Magnetic Fields
01:27
• Magnetic Field Lines
02:49
• Magnetic Force on an Electric Charge
02:56
• Motion of a Charged Particle in a Constant Uniform Magnetic Field
08:44
• Magnetic Force on a Current-Carrying Wire
04:28
• Thank You!
00:56