Loading the lesson
Loading the lesson
Search AllRounder.ai
Search the courses, subjects, tracks, games and features, or jump straight to a page.
Search the courses, subjects, tracks, games and features, or jump straight to a page.
3 cards from this section. Quick, good the night before a test.
What is a magnetic field?
Think about where you might feel a force when moving near magnets.
What does the symbol μ₀ represent?
It's a constant used in magnetism equations.
What is the formula for magnetic force on a charge?
It's the most specific formula discussed.
True or False: The magnetic field strength increases as you move away from a current-carrying wire.
Think about the relationship in the formula.
A charged particle with a charge of +2 C is traveling at a speed of 10 m/s through a magnetic field of strength 0.2 T. Calculate the magnetic force acting on it when the angle θ is 60 degrees.
Use the sine of 60 degrees for your calculations.
Describe how and why the magnetic field strength changes as you move away from a current-carrying wire, using the formula B = μ₀ I / (2πr). Calculate the field strength from a wire carrying 3 A at a distance of 0.3 m.
Focus on the relationship between r and B, and compute based on the constants provided.
4 more questions in this section. Enroll free to practise them all.
Enroll free