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Recent questions tagged magnetic-field


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An alternating current can induce voltage because it has
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An alternating current can induce voltage because it hasAn alternating current can induce voltage because it has A) ripple value B) varying magnetic field C) weaker magnetic field than direct current D) hi ...
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asked in Physics & Chemistry Sep 12, 2021
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What is magnetic flux?
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What is magnetic flux?What is magnetic flux? ...
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asked in Physics & Chemistry Aug 30, 2021
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How many turns of wire must a coil have in order to induce a voltage of 10.5 volts when exposed to a changing magnetic flux with a rate of 0.0075 Wb/s?

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The magnetic flux through a coil containing 50 loops changes from 30 Wb to –30 Wb in 0.42 seconds. What is the voltage induced in the coil?

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Where do l use Faraday's law?
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Where do l use Faraday's law?Where do l use Faraday's law? ...
by Joshua Mwanza Diamond
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asked in Physics & Chemistry Jun 1, 2020
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An induction coil of area 48,6 cm2 and 200 windings is rotated clockwise in a constant magnetic field of magnitude 2,4 T.

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An induction coil of area 48,6 cm2 and 200 windings is rotated clockwise in a constant magnetic field of magnitude 2,4 T.
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State Faraday's law in words.
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A circular coil is placed inside a magnetic field and rotated clockwise to induce an emf. Which ONE of the following changes will increase the induced emf?
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