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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 the compass needle next to a current carrying wire suggest?
What does the deflection of the compass needle next to a current carrying wire suggest?
Electricity and magnetism are linked.
What is the name of the scientist who accidentally discovered the relationship between electricity and magnetism?
What is the name of the scientist who accidentally discovered the relationship between electricity and magnetism?
Hans Christian Oersted
What is the unit of magnetic field strength named after Hans Christian Oersted?
What is the unit of magnetic field strength named after Hans Christian Oersted?
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What type of wire should be used in Activity 12.1?
What type of wire should be used in Activity 12.1?
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In Activity 12.1, how should the wire be placed relative to the plane of the paper?
In Activity 12.1, how should the wire be placed relative to the plane of the paper?
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What is the general term for effects involving the magnetic effect of electric current?
What is the general term for effects involving the magnetic effect of electric current?
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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 should be inserted into the plug to pass current through the circuit in Activity 12.1?
What should be inserted into the plug to pass current through the circuit in Activity 12.1?
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What does an electric current carrying wire behave like?
What does an electric current carrying wire behave like?
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Flashcards
Magnetic Effect of Electric Current
Magnetic Effect of Electric Current
The phenomenon where electric currents produce magnetic fields around conductors.
Deflection of Compass Needle
Deflection of Compass Needle
The movement of a compass needle when near a current-carrying wire, indicating a magnetic effect.
Hans Christian Oersted
Hans Christian Oersted
A scientist who discovered the connection between electricity and magnetism in 1820.
Electromagnet
Electromagnet
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Unit of Magnetic Field Strength
Unit of Magnetic Field Strength
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Electric Circuit
Electric Circuit
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Heating Effects of Electric Current
Heating Effects of Electric Current
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Magnetic Fields
Magnetic Fields
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Compass
Compass
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Electromagnetic Effects
Electromagnetic Effects
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Study Notes
Magnetic Effects of Electric Current
- Electric current-carrying wires exhibit magnetic properties.
- Activity 12.1 demonstrates this: A compass needle placed near a wire carrying current deflects.
- This deflection indicates a magnetic field generated by the current.
- Electric current and magnetism are linked.
- The experiment shows electricity and magnetism are related.
- Hans Christian Ørsted discovered this relationship in 1820.
- This discovery led to the development of 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
Explore the magnetic effects of electric current. An electric current-carrying wire behaves as a magnet. Hans Christian Ørsted discovered the link between electricity and magnetism in 1820, paving the way for technologies like radio and television.
