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Questions and Answers
What is the relationship between like magnetic poles?
What is the relationship between like magnetic poles?
- They oscillate
- They repel each other (correct)
- They attract each other
- They have no effect on each other
What is the effect of an electric current flowing through a wire on the magnetic field?
What is the effect of an electric current flowing through a wire on the magnetic field?
- It has no effect on the magnetic field
- It creates an electric field
- It produces a magnetic field (correct)
- It weakens the magnetic field
What materials are considered ferromagnetic materials?
What materials are considered ferromagnetic materials?
- Aluminum, copper, and silver
- Gold, platinum, and titanium
- Lead, zinc, and tin
- Iron, nickel, and cobalt (correct)
What are magnetic domains?
What are magnetic domains?
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How are electric and magnetic fields related to each other?
How are electric and magnetic fields related to each other?
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What is the principle behind the operation of a solenoid with an iron core?
What is the principle behind the operation of a solenoid with an iron core?
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What type of device is a motor?
What type of device is a motor?
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In which device does a coil cut through magnetic fields and cause a current, as per Faraday's law?
In which device does a coil cut through magnetic fields and cause a current, as per Faraday's law?
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What is the fundamental principle behind the operation of generators?
What is the fundamental principle behind the operation of generators?
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What distinguishes a step-up transformer from other transformers?
What distinguishes a step-up transformer from other transformers?
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