State the first right-hand rule and explain how it is used to determine the direction of the magnetic field around a current-carrying wire.

Point your right thumb in the direction of the electric current. The direction your fingers curl indicates the direction of the magnetic field lines.

A wire carrying a current is placed in a magnetic field. What four factors affect the magnitude of the force on the wire?

The magnitude of the force is affected by the current in the wire, the length of the wire in the magnetic field, the strength of the magnetic field, and the angle between the current and the magnetic field.

State the second right-hand rule and explain how it helps determine the direction of the force on a current-carrying wire in a magnetic field.

Point your arm in the direction of the current, then bend your fingers in the direction of the magnetic field. Your thumb points in the direction of the force on the wire.

Electric Current And Magnetic Fields Lesson Plan for 11th Grade

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Objective

I can explain the relationship between electric current and magnetic fields.

Part 1 of 4

Warm-up video

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We don't generate video — this one is by CrashCourse on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.

Part 2 of 4

Key concepts

3 concepts

1
Hans Christian Oersted discovered the connection between electricity and magnetism when he noticed a compass needle moving near a current-carrying wire.
2
Magnetic fields are measured in teslas, and magnetic field lines always form closed loops, unlike electric fields.
3
The force on a single electric charge moving through a magnetic field depends on the charge's magnitude, velocity, the strength of the magnetic field, and the angle between the velocity and the magnetic field.

Part 3 of 4

Practice

8 questions

Describe Oersted's key observation during his lecture demonstration in 1820 and explain its significance.

Explain why you cannot isolate a single magnetic pole (i.e., have a lone north or south pole).

Part 4 of 4

Exit ticket

Quick comprehension check

“Describe the relationship between electric current and magnetic fields, as demonstrated by Oersted's experiment. Include the direction of the magnetic field relative to the current.”

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Electric Current and Magnetic Fields

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Warm-up video

Key concepts

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