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

[taylor.simon]

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

 

[rl.bhat]

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.