Qualification > Sciences
ALL PHYSICS DOUBTS - POST HERE !!
The Golden Girl =D:
june 2003 ....Q10 part bi
Raywin:
--- Quote from: the golden girl on May 26, 2010, 01:29:48 pm ---june 2003 ....Q10 part bi
--- End quote ---
(i) By increasing the current, the magnetic field lines is ONLY stronger. It does not change direction. It is the SAME.
(ii) By reversing the direction of current, the magnetic field reverses and so the compass points in the OPPOSITE direction.
:D
holtadit:
This question has been bugging me. I saw it in a few GCE past papers.
You know that diagram for Lenz's Law in all textbooks ? It shows a magnet entering a solenoid....
okay, How do I predict which way the Galvananometer or ammeter will defelct ? Like will go tot the right or left and why ?
Like in the diagram below :
Which way does the ammeter pointer deflect towards ? Left or right ?
jellybeans:
HI!!!! need some help here... are my answers right..? or wrong.. hehhs, :P
help pleaseee :D
... helllllppp .. dont really know what the MS's talking about... :(
Raywin:
--- Quote from: Ari Ben Canaan on May 26, 2010, 01:34:51 pm ---This question has been bugging me. I saw it in a few GCE past papers.
You know that diagram for Lenz's Law in all textbooks ? It shows a magnet entering a solenoid....
okay, How do I predict which way the Galvananometer or ammeter will defelct ? Like will go tot the right or left and why ?
Like in the diagram below :
Which way does the ammeter pointer deflect towards ? Left or right ?
--- End quote ---
I THINK when the magnet is first put into the solenoid, the ammeter moves to the right. Then when the magnet is pulled out, the ammeter moves to the left? Im not really sure as to WHY it does this but positive it moves in this manner
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