Physics 3, Volume 2 – Section 19 –
Magnetic Torque on a Current Loop (electric motors)
In this lesson, we examine the case where we have a current loop
immersed in a magnetic field. We show that this arrangement gives
rise to a torque (force that causes rotation about an axis). This is
the fundamental principle upon which all electric motors operate.
Chemistry 1, Vol 2 – Section 10 – Limiting Reactants – Part 1
In this section, we introduce the concept of the limiting reactant in a chemical
reaction. A limiting reactant is the reactant that is consumed first in the reaction,
thereby stopping the reaction. We work numerous example problems that show
how to find the limiting reactant in a reaction and use this info to calculate how
much product will be produced.
In this lesson, we work additional problems to calculate the force
that a magnetic field exerts on a wire that carries electric current
if that wire is placed in the field. Problems are worked with full
solutions to demonstrate the technique.
Physics 3, Vol 2 – Section 17:
Magnetic Force on a Current Carrying Wire – Part 2
In this lesson, we work additional problems to calculate the
force that a magnetic field exerts on a wire that carries electric
current if that wire is placed in the field. Problems are worked
with full solutions to demonstrate the technique.
Physics 3, Volume 2 – Lesson 16
Magnetic Force on a Current Carrying Wire – Part 1
In this lesson, learn how to calculate the force that a magnetic field exerts on
a wire that carries electric current if that wire is placed in the field. Problems
are worked with full solutions to demonstrate the technique.
Physics 3, Volume 2:
Lesson 15 – Orbiting Charges in a Magnetic Field – Problems
In this lesson, we use the equations that govern how charged particles move
in a magnetic field to solve several practical problems. Specifically, we examine
how the magnetic field influences the motion of a charged particle with fully
worked problems.
Physics 3, Volume 2
Magnetic Confinement and the Earth’s Aurora
In this lesson, we explore a two very cool applications of particles in a
magnetic field. The first is how to confine a particle in a magnetic bottle
and can be used to study nuclear fusion and also spacecraft propulsion
systems. The second application is how the Aurora occurs on Earth,
which has to do with the solar wind interacting with the Earth’s magnetic
field.
Physics 3, Volume 2 – Section 13:
Equations of an Orbiting Charge in a Magnetic Field
In this lesson, we explore what happens when a charged particle
is launched into a magnetic field at an angle perpendicular to
the field. The forces and equations of motion are examined and
we derive the particle’s orbital radius, period, frequency, and
angular frequency.
This video shows how to rapidly find the
common denominator of any two fractions!
Physics 3, Volume 2 – Section 12
Magnetic Force on a Charged Particle – Part 2
In this lesson, we work practical example problems that demonstrate how
to calculate the force that a magnetic field exerts on a charged particle
moving in the field.