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