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ALL PHYSICS DOUBTS - POST HERE !!

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OBADATH:
what about the (corning waves)!!!!
please help..exam in two hours

Ghost Of Highbury:

--- Quote from: ~HyDrOgEn~ on May 26, 2010, 11:13:06 am ---Yo, anyone can help me with this question:
May/June 2005, paper 1 , Question 27, what is that!!

--- End quote ---

A - both point towards north

Ivo:

--- Quote from: Ivo on May 26, 2010, 10:51:42 am ---Can anyone please clear doubt about magnetism.  So ferrous materials can be magnetised (e.g. iron and steel).  All ferrous materials can be magnetically induced (so both sides of a magnetic object attracts).  

However, a magent has poles.  To make magnet, you place in d.c. current.

I'm not sure, but am i right in saying that in magnetic induction, the thing being induced is not a magnet, because it does not have magnetic field lines?

By the way, iron is magnetically soft, so loses magnetism easily right?


--- End quote ---

Please please can someone clarify thins, thanks!

the_grim_reaper:

--- Quote from: Dana on May 26, 2010, 10:59:51 am ---Noooo I wanna know if it was easy or difficult! So i can brace myself uno? :P
I'm doing it in Saudi too! Which city are you in?

--- End quote ---

The great city of Riyadh lol. With Minarat-ar-Riyadh as my centre and an invigilator who scares the heck out of me evrytime I see him. You should never try to know how easy or hard a paper was. If it was easy, you'll get over-confident. If it was hard, you'll already be freaked out and u'll screw you're grade. Besides, it's a different varient too so it's useless to find out if the other varient was easy or hard...

Ghost Of Highbury:

--- Quote from: Ivo on May 26, 2010, 11:18:16 am ---Please please can someone clarify thins, thanks!


--- End quote ---

yes, because it doesnt hav magnetic field.

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