Question

Magnetic field strength decreases as you get farther from the poles of the magnet. does the flux through the face of the coil change as you move the magnet? explain your answer.

Answer 1

Magnetic field strength decreases as you get farther from the poles of the magnet.

Explanation

There are three ways to change the magnetic flux across a loop: Change the strength of the magnetic field across the surface (raise, reduce).

It doesn’t matter whether you move the coil while keeping the magnet fixed or the other way around if you want to change the surface area of the loop (raise by expanding the loop, decrease by reducing the loop).

The way they move in respect to one another determines how the magnetic flux across the coil changes. The direction in which the galvanometer needle deflects depends on which side of the coil confronts the magnet when you move it. The coil ends are labelled to show which goes to the red wire and which goes to the black wire.

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