Electromagnetism

YOU ARE LEARNING:

F = BIL

We can calculate the force experienced by a current-carrying conductor in a magnetic field by using the equation Force = Magnetic Flux Density x Current x Length.

What do you think is another term for the strength of the magnetic field?

Flux describes the rate of flow of something. Magnetic flux density is the total number of magnetic field lines passing through a specified area in a magnetic field. This is measured in Tesla (T).

Pick all the options that affect the size of a force that acts on a current-carrying conductor in a magnetic field.

You can select multiple answers

The force acting on a conductor in a magnetic field depends on three things: the magnetic flux density, the size of the current flowing through the conductor, and the length of the conductor.

What is the correct unit for measuring current through a conductor in a magnetic field?

Which of the following would be the best unit for measuring the length of the conductor?

An iron bar of length 0.1 m is connected to an electrical circuit with a current of 2 amps and placed perpendicular to a magnetic field of 0.2 T. What do you think is the most reasonable option for the force acting on the iron bar?

An iron bar of length 0.1 m connected to a circuit with a current of 2 A and placed perpendicular to a magnetic field of 0.2 T, produces a force of 0.04 Newtons.

What is the correct formula for calculating the force acting on a conductor in a magnetic field? $F$ is force, $L$ is length, $I$ is current and $B$ is the magnetic flux density.

When the current acting through a conductor in a magnetic field is at 90 degrees to the magnetic field, we can calculate the force acting on a conductor using the formula $F=BIL$ .

$F$ is the force in Newtons (N), $B$ is the magnetic flux density in Tesla (T), $I$ is current through the conductor in amps (A), and $L$ is length of the conductor is metres (m).

An iron bar of length 0.5 m is connected to an electrical circuit with a current of 2 A and placed perpendicular to a magnetic field of 0.5 T. Calculate the force acting on the iron bar.