Linggo, Pebrero 27, 2011

The Assessments

Questions for: 
     a)  ELECTROMAGNETIC INDUCTION
     b)  MOTORS & GENERATORS

1. What made AC superior to DC in terms of (a)cost, (b)design and (c)speed?
2. It is a device for producing electrical energy to mechanical energy (the reverse of an electric motor) _____________.
3. Real generators use _______ to provide the field structure.
4. He discovered the electromagnetic induction_________.
5.  Why is it when a magnet is moved in the direction of a copper wire coil, a current can then be measured in the coil?

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