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

A 5-turn coil 1.0 cm in diameter is rotated at 10 rev/s about an axis perpendicular to a uniform magnetic field. A voltmeter connected to the coil through rotating contacts reads a peak value of 360 uV. What is the magnetic field strength?

3. The attempt at a solution

B=u_{0}nI

u_{0}= 8.85 x 10^{-12}C^{2}/N m^{2}

n = 5

I'm not exactly sure how to find the current.

I know that the induced EMF = Blv, but I don't know what to do about length.

v=omega*r = 0.05 m/s

So, once I find either the length or the current, I should be able to find B.

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# Magnetic field due to a solenoid

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