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Electromagnetism test

This 11th-grade electromagnetism test assesses students' understanding of electromagnets, induction, motors, and generators through multiple-choice and short-answer questions. Students practice identifying key materials and concepts, explaining how components function, and applying principles to real-world devices.

By Edform · Physics · Grade 11 · Published Oct 15, 2026 · New

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Questions

  1. Which material is commonly used as the core of an electromagnet to increase its strength?
  2. Which of the following actions will increase the strength of an electromagnet? Select all that apply.
  3. A generator converts mechanical energy into electrical energy.
  4. What is the main function of the commutator in a simple electric motor?
  5. What is the name of the effect where a changing magnetic field induces a current in a conductor?
  6. A coil with 200 turns is placed in a magnetic field that changes at a rate of 0.05 tesla per second. What is the induced emf (in volts) in the coil? (emf = N × ΔB/Δt)
  7. Which device uses electromagnetic induction to increase or decrease voltage in an AC circuit?
  8. Which of the following are necessary components for a basic electric motor? Select all that apply.
  9. The direction of induced current in a conductor depends on the direction of the changing magnetic field.
  10. Name the rule used to determine the direction of the force on a current-carrying wire in a magnetic field.

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