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

  • #1

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 cant find the equations anywhere help please
 

Answers and Replies

  • #2
rl.bhat
Homework Helper
4,433
7
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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