Electromagnetic induction introduction to electromagnetic induction activity 4

=Activity No # 4 - Factors influences emf=

Estimated Time
20 minutes

Materials/ Resources needed

 * 1) Video clip of Electro magentic induction experiment with different coils
 * 2) LED projector
 * 3) White screen

Multimedia resources
http://www.youtube.com/watch?v=vwIdZjjd8fo

Process (How to do the activity)
Show the short video of number of coils increasing emf is increasing.

Evaluation (Questions for assessment of the child)
1. Which the following coil is more emf produced when magnet movement inside the coil? mark 1 2. A copper coil, a strong bar magnet and a led bulb are on the table. How do you glow on the led bulb? Mark 2

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