Questions and Answers
What is the rule used to determine the direction of the magnetic field around a straight current-carrying conductor?
Right-hand thumb rule
Who discovered that a needle got deflected when a current-carrying conductor was placed nearby?
Hans Christian Oersted
What is the device used to induce current in a circuit based on the principle of electromagnetic induction?
Transformer
Who formulated the right-hand rule to determine the direction of the magnetic field induced by a current-carrying loop?
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What is the principle behind the working of an electric motor?
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What kind of force does a moving charge experience in a magnetic field?
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What materials does a permanent magnet's magnetic field pull on?
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What are the three magnetic effects exerted by a nonuniform magnetic field on 'nonmagnetic' materials?
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What mathematical concept is used to describe the strength and direction of a magnetic field?
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What types of fields surround magnetized materials, electric currents, and electric fields varying in time?
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