ou are going to design a generator using the principles learned in Electromagnetism. Some typical situations are given. Use your imagination to go beyond the calculations and explain how you will design your own generator. Figure is attach  Figure below shows a simple alternator, a device that generates an emf. A rectangular loop is rotated with constant angular speed ω about the axis shown. The magnetic field is uniform and constant. At time t = 0, φ= 0. Determine the induced emf.  Draw the evolution of ε and ΦB in above situation, and using loops explaining what is the relation between the two at different time intervals.  What possible problems you see with your output of emf? How will you cure them? What changes are needed here to convert this alternator into a DC Generator? Why are they called DC Generators?

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Bar Magnet

In physics, magnetism is a phenomenon exhibited by a magnetic substance that exerts either attractive or repulsive force. A bar magnet is either a rectangular or round and hollow fit comprised of ferromagnetic materials and has a fanciful attractive field surrounded by it.