(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

You hold a wire coil perpendicular to a magnetic field B. If the magnitude of B increases while its direction remains unchanged, how will the magnetic flux through the coil change?

Check all that apply:

The flux is unchanged because the position of the coil with respect to B is unchanged.

The flux increases because the magnitude of B increases.

The flux decreases because the magnitude of B increases.

The flux is unchanged because the surface area of the coil is unchanged.

2. Relevant equations

[tex]A_{eff} = Acos\vartheta[/tex]

3. The attempt at a solution

According to the formula - [tex]A_{eff} = Acos\vartheta[/tex], the magnetic flux is determined by the area. I believe the answer is "flux is unchanged because the surface area of the coil is unchanged" since in the problem, only B is changing.

Am I right?

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# Homework Help: Magnetic Flux through a Coil

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