Understanding Induced Movement of Coil and Magnet

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The discussion centers on the concept of induced movement in coils and magnets, specifically addressing how an induced magnetic field affects coil motion. When a magnet moves through a coil of wire, it induces a current, generating a magnetic field that interacts with the existing magnetic field. The scenario described confirms that if the coil is shorted, the induced voltage and current will oppose the magnet's field, validating the assertion that Induction Motor B is true.

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movingcoil.jpg


What is the answer? Should be B

Please Explain the reason behind

I don't understand how an induced Magnetic Field will cause the coil to move.

(Not Homework)Source:tycphysics.org/TIPERs/TIPER%206_20_02_keys%20pdf/EMI%205a_Key_6_02.pdf

thanks for helping
 
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Is an electrically induced magnetic field somehow different from a magnetic field produced by a permanent magnet?

When a magnet moves through the coil of wire, a current is induced in the wire. When current is flowing through a wire, a magnetic field is generated around the wire. If another magnetic field is present, they will interact.

Induction Motor
 
B is true if the coil of wire is shorted. The dB/dt linking the coil will develop a voltage around and hence a current in the wire that opposes the field of the magnet.
 
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