• Support PF! Buy your school textbooks, materials and every day products Here!

Question on Electromagnatic Induction

  • Thread starter mike2011
  • Start date
  • #1
1
0

Homework Statement


9 volt battery
1 Nail
Few paper clips
Cooper Wire
Switch

Homework Equations


Why my Electromagnetic Induction experiment failed ? It did not create electromagnetic field to attract surrounding paper clips. What are missing here ? How to do successful home-made electromagnetic Induction ? Please help.


The Attempt at a Solution


Made 75 rounds around the Nail to create Solenoid.
Wire connected to battery + -
Turned on the switch
 

Answers and Replies

  • #2
SammyS
Staff Emeritus
Science Advisor
Homework Helper
Gold Member
11,236
962

Homework Statement


9 volt battery
1 Nail
Few paper clips
Cooper Wire
Switch

Homework Equations


Why my Electromagnetic Induction experiment failed ? It did not create electromagnetic field to attract surrounding paper clips. What are missing here ? How to do successful home-made electromagnetic Induction ? Please help.


The Attempt at a Solution


Made 75 rounds around the Nail to create Solenoid.
Wire connected to battery + -
Turned on the switch
Was the wire insulated ?
 
  • #3
collinsmark
Homework Helper
Gold Member
2,880
1,181
Hello mike2011,

Welcome to Physics Forums! :smile:

Homework Statement


9 volt battery
1 Nail
Few paper clips
Cooper Wire
Switch

Homework Equations


Why my Electromagnetic Induction experiment failed ? It did not create electromagnetic field to attract surrounding paper clips. What are missing here ? How to do successful home-made electromagnetic Induction ? Please help.


The Attempt at a Solution


Made 75 rounds around the Nail to create Solenoid.
Wire connected to battery + -
Turned on the switch
If you are using your own nail (rather than one provided for you), make sure the nail is iron or steel based and not aluminum. Aluminum nails will not work for this experiment (you need a ferromagnetic material as the electromagnet core. Aluminum is not a ferromagnetic material).

[Edit: you can check this using a standing magnet, like a refrigerator magnet. If the nail is attracted to the magnet it should work. If it is not attracted to the magnet, it's probably an aluminum nail.]

The copper wire needs to be insulated for the part that wraps around the nail. If the wire is not insulated it will just create a short circuit and nothing will happen, except it might get very hot.

The insulation needs to be stripped off the wire at the parts that connect to the battery-terminals and switch terminals. Electrical contact needs to be made at these parts of the wire.
 

Related Threads for: Question on Electromagnatic Induction

  • Last Post
Replies
4
Views
2K
  • Last Post
Replies
3
Views
1K
  • Last Post
Replies
2
Views
2K
Replies
11
Views
5K
  • Last Post
Replies
3
Views
3K
  • Last Post
Replies
18
Views
2K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
9
Views
690
Top