Please Show Work. What are the three ways to produce an induced emf using a magn

Question

Please Show Work.

What are the three ways to produce an induced emf using a magnet and coil of wire? Give an applied example of each. An AC Motor runs on a max emf of 120V but requires the motor to make 100 cycles per second. How strong must the B field in the coil be to create the optimum output voltage and frequency in the 200 turn coil? Oersted's Law states that a changing electric field (or voltage) can induce a magnetic field. Design an experiment in which a changing electric field (or voltage) creates a B field using a coil of wire and a battery. Design an experiment to utilize the constant magnetic field of the earth to create an emf.

Explanation / Answer

3.1

The time varying magentic flux through a coil induces the emf.

The emf can be created by relative motion between the coil and magnet.

By changing the area of the loop (by changing the shape of the coil)

By rotating the coil near the magnet.

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