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# Unit 4: Magnetism and electromagnetism

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Unit test

### Practice

- Magnetic field lines: directionGet 3 of 4 questions to level up!

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### Practice

- Direction of cross product of two vectors (right-hand rule)Get 3 of 4 questions to level up!
- Magnetic force on moving chargesGet 3 of 4 questions to level up!
- Properties of magnetic force on charged particleGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 320 Mastery points

### Learn

### Practice

- Apply: magnetic field due to straight current-carrying conductorsGet 3 of 4 questions to level up!
- Apply: force on a current-carrying conductor in a magnetic fieldGet 3 of 4 questions to level up!

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### Practice

- Faraday's law - magnitude of induced emf (average)Get 3 of 4 questions to level up!
- Lenz's law - iiiGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 320 Mastery points

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Level up on all the skills in this unit and collect up to 800 Mastery points!#### Unit test

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