Coils rotating in a magnetic field find maximum emf and magnetic feild strength

AI Thread Summary
To find the strength of the magnetic field generated by a coil rotating in a magnetic field, the maximum induced emf can be calculated using the formula Maximum emf = nABω. In this scenario, the coil has a diameter of 2.00 cm and 72.0 turns, rotating at a frequency of 20.0 Hz. The area of the coil is determined based on its diameter, and the angular frequency ω is calculated as 2π times the frequency. By substituting the known values into the equation, one can solve for the magnetic field strength B. Understanding these relationships is crucial for accurately measuring unknown magnetic fields.
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Homework Statement



coils rotating in a magnetic field are often used to measure unknown magnetic fields. As an example, consider a coil of diameter 2.00 cm with 72.0 turns that is rotated about an axis perpendicular to the field at a rate of 20.0 Hz. If the maximum induced emf in the coil is 6.00 V, find the strength of the magnetic field.

i can't find the equations anywhere help please
 
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Maximum emf = nABω
where n is the number of turns
A is the ares of the coil
B is the magnetic field and
ω is 2*π*f where f is the frequency of rotasion.
 

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