Difference between revisions of "Electromagnetic induction introduction to electromagnetic induction activity 3"

From Karnataka Open Educational Resources
Jump to navigation Jump to search
 
(8 intermediate revisions by the same user not shown)
Line 1: Line 1:
 
__FORCETOC__
 
__FORCETOC__
=Activity No # 3 - '''Electromagnetic Induction using Galvanometer'''=
+
=Activity No # 1 - '''Factors influencing e.m.f. & Michel Faraday experiment'''=
 
 
 
==Estimated Time==
 
==Estimated Time==
20 minutes
+
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.Which the following emf is produced? Yes/no            <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
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>
 
 
 
 
==Question Corner==
 
==Question Corner==
  
 
'''To link back to the topic page'''
 
'''To link back to the topic page'''
 
[[Electromagnetic_induction|'''Go Back''']] <br>
 
[[Electromagnetic_induction|'''Go Back''']] <br>

Latest revision as of 05:37, 26 August 2014

Activity No # 1 - Factors influencing e.m.f. & Michel Faraday experiment

Estimated Time

45 minutes

Materials/ Resources needed

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

Prerequisites/Instructions, if any

Multimedia resources

http://www.youtube.com/watch?v=vwIdZjjd8fo
Factors influencing e.m.f. {{#ev:youtube| vwIdZjjd8fo| 150| left}}
Michel Faraday experiment {{#ev:youtube| EECRoYNaSxg| 150| left}}

Website interactives/ links/ simulations

Process (How to do the activity)

Show the above short video of number of coils increasing emf is increasing.
Show the above video of Michel Faraday experiment.

Developmental Questions (What discussion questions)

Evaluation (Questions for assessment of the child)

1. Which the following coil is more emf produced when magnet movement inside the coil? mark 1
Coil1.png
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

To link back to the topic page Go Back