- 1. What year did Hans Christian Oersted discover electromagnetism?
A) 1752
B) 1820
C) 1901
D) 1945
- 2. What type of field was Oersted studying when he discovered electromagnetism?
A) Heat field
B) Magnetic field
C) Gravitational field
D) Electric field
- 3. In Oersted's experiment, what did he observe when he passed an electric current through a wire near a compass needle?
A) The needle deflected
B) The needle heated up
C) The needle did nothing
D) The needle spun around
- 4. What does the discovery of electromagnetism describe?
A) The invention of the light bulb
B) The discovery of radio waves
C) The relationship between electricity and magnetism
D) The discovery of the electric charge
- 5. Which scientist developed the first electromagnet following Oersted's discovery?
A) Isaac Newton
B) Albert Einstein
C) Marie Curie
D) William Sturgeon
- 6. Oersted's discovery laid the foundation for the development of which technology?
A) Automobiles
B) Telegraph machines
C) Electric motors
D) Steam engines
- 7. What scientific principle underlies the operation of electric generators?
A) Electromagnetic induction
B) Quantum mechanics
C) Special relativity
D) Nuclear fission
- 8. What university did Oersted teach at when he made his electromagnetism discovery?
A) Harvard University
B) University of Copenhagen
C) University of Paris
D) Oxford University
- 9. What material did Oersted pass an electric current through in his experiment with the compass needle?
A) Rubber
B) Wood
C) Wire
D) Glass
- 10. Oersted's discovery united which two fields of study?
A) Astrophysics and geology
B) Electricity and magnetism
C) Psychology and sociology
D) Chemistry and biology
- 11. Who later developed the mathematical formulation for electromagnetism?
A) Erwin Schrödinger
B) Max Planck
C) Albert Michelson
D) James Clerk Maxwell
- 12. Oersted's discovery led to the concept of a magnetic field being produced by what?
A) Radio waves
B) Electric current
C) Static charge
D) Gravity
- 13. What was Hans Christian Oersted's nationality?
A) Swedish
B) German
C) French
D) Danish
- 14. Which of the following materials can be easily magnetized?
A) Rubber
B) Iron
C) Plastic
D) Paper
- 15. What property of a material determines how easily it can be magnetized?
A) Permeability
B) Hardness
C) Density
D) Color
- 16. What electromechanical device is used to transmit electrical energy between two or more circuits through electromagnetic induction?
A) Resistor
B) Diode
C) Transformer
D) Capacitor
- 17. What is the process called when an electric current flows through a conductor in the presence of a magnetic field resulting in a force on the conductor?
A) Lorentz force
B) Bernoulli's principle
C) Bohr effect
D) Hooke's law
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