Solve all given parts of following question:
Question: The armature of an ac generator has 100 turns. Each turn is a rectangular loop measuring 8.0 cm by 12 cm. The generator has a sinusoidal voltage output with amplitude of 24 V. If the magnetic field of the generator is 250 mT;
Part I: what frequency does the armature turn?
Part II: If you double the B and cut in half, how does this affect the amplitude?
Please show all work and clearly explain each steps.