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Line 1: − + − − 20 minutes+ − + − + − + − + + + + + + − + + + − + − + − 2.Which the following emf is produced? Yes/no <br>+ − a) Coil is steady, magnet is moved inside the coil _______________ <br> − b) Coil and magnet are moved away in opposite direction _______________ <br> − c) Magnet is steady, Coil is moved towards magnet ____________ <br> − d) Coil and magnet both are moved together __________________ mark 2 <br> − − 3.copper coil is connected to Galvanometer and a bar magnet. What are the changes in the following − * Magnet kept inside the coil ____________________________ <br> − * Magnet is pushed slowly ________________________________ <br> − * Magnet is pushed inside the coil very quickly _____________________ mark 2 <br> − − +
Electromagnetic induction introduction to electromagnetic induction activity 3 (view source)
Revision as of 05:37, 26 August 2014
, 05:37, 26 August 2014→Multimedia resources
__FORCETOC__
__FORCETOC__
=Activity No # 3 - '''Electromagnetic Induction using Galvanometer'''=
=Activity No # 1 - '''Factors influencing e.m.f. & Michel Faraday experiment'''=
==Estimated Time==
==Estimated Time==
45 minutes
==Materials/ Resources needed==
==Materials/ Resources needed==
#A strong bar magnet
#Video clip of Electro magentic induction experiment with different coils
#Copper coil with 500 turns
#LED projector
#Galvanometer
#White screen
==Prerequisites/Instructions, if any==
==Prerequisites/Instructions, if any==
==Multimedia resources==
==Multimedia resources==
http://www.youtube.com/watch?v=vwIdZjjd8fo <br>
Factors influencing e.m.f.
{{#ev:youtube| vwIdZjjd8fo| 150| left}} <br>
Michel Faraday experiment
{{#ev:youtube| EECRoYNaSxg| 150| left}}
==Website interactives/ links/ simulations==
==Website interactives/ links/ simulations==
==Process (How to do the activity)==
==Process (How to do the activity)==
Show the connection of copper coil and galvanometer. Show the electromagnetic induction using galvanometer and copper coil. Observe the changes of galvanometer deflections. <br>
Show the above short video of number of coils increasing emf is increasing. <br>
Show the above video of Michel Faraday experiment.<br>
==Developmental Questions (What discussion questions)==
==Developmental Questions (What discussion questions)==
==Evaluation (Questions for assessment of the child)==
==Evaluation (Questions for assessment of the child)==
1.The device that detects the induced emf is called _________________ mark 1
1. Which the following coil is more emf produced when magnet movement inside the coil? mark 1 <br>
[[File:Coil1.png|200px]] <br>
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
==Question Corner==
==Question Corner==
'''To link back to the topic page'''
'''To link back to the topic page'''
[[Electromagnetic_induction|'''Go Back''']
[[Electromagnetic_induction|'''Go Back''']] <br>