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Questions and Answers
What happens to a compass needle when placed near a current-carrying wire?
What happens to a compass needle when placed near a current-carrying wire?
The compass needle deflects.
What does the deflection of a compass needle near a current-carrying wire suggest about electricity and magnetism?
What does the deflection of a compass needle near a current-carrying wire suggest about electricity and magnetism?
Electricity and magnetism are linked.
What is the reverse possibility of the magnetic effect of electric current?
What is the reverse possibility of the magnetic effect of electric current?
An electric effect of moving magnets.
Who discovered the relationship between electricity and magnetism in 1820?
Who discovered the relationship between electricity and magnetism in 1820?
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What was Oersted doing when he made his famous discovery?
What was Oersted doing when he made his famous discovery?
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What technologies were created from Oersted's research?
What technologies were created from Oersted's research?
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What is the unit of magnetic field strength named after Oersted?
What is the unit of magnetic field strength named after Oersted?
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What is the relationship between electric current and a magnetic field?
What is the relationship between electric current and a magnetic field?
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What will we study, regarding the magnetic effects of electric current, in this chapter?
What will we study, regarding the magnetic effects of electric current, in this chapter?
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What materials where used in activity 12.1?
What materials where used in activity 12.1?
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Flashcards
Electric Current
Electric Current
The flow of electric charge through a conductor.
Magnetic Effect
Magnetic Effect
The influence that electric current has on magnetic fields.
Compass Needle Deflection
Compass Needle Deflection
The movement of a compass needle when exposed to a magnetic field.
Hans Christian Oersted
Hans Christian Oersted
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Electromagnet
Electromagnet
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Electromagnetism
Electromagnetism
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Magnetic Field Strength
Magnetic Field Strength
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Activity 12.1
Activity 12.1
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Metallic Conductor
Metallic Conductor
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Connection of Electricity and Magnetism
Connection of Electricity and Magnetism
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Study Notes
Magnetic Effects of Electric Current
- Electric current-carrying wires exhibit magnetic effects.
- Activity 12.1 demonstrates this: a compass needle near a wire carrying current deflects.
- Current through a copper wire creates a magnetic field.
- This demonstrates a link between electricity and magnetism.
- Further study will explore the reverse relationship.
- Electromagnetism and electromagnets will be examined.
Hans Christian Ørsted
- A key scientist in understanding electromagnetism, Ørsted (1777-1851).
- In 1820, he accidentally discovered a connection between electricity and magnetism.
- Ørsted's observation that a compass needle deflected near a current-carrying wire, established a link between these two phenomena.
- His discovery created technologies like radio, television, and fiber optics.
- The unit of magnetic field strength is named the 'oersted' in his honor.
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Description
This quiz explores the magnetic effects produced by electric currents, highlighting the connection between electricity and magnetism. It also examines the contributions of Hans Christian Ørsted, who played a pivotal role in understanding this relationship. Engage with concepts of electromagnetism as well as practical demonstrations of these principles.
