Qualification > Sciences
ALL PHYSICS DOUBTS - POST HERE !!
ginger:
hay guys
plz help me with this..............Q11 and Q32 nov 2008 paper1.....
urgent plzzzzzzzzz
ambitious94:
--- Quote from: diva_sparkles on May 25, 2010, 04:42:22 pm ---its B
--- End quote ---
That I figured from the mark scheme....HOWWWWWWW!
Vin:
--- Quote from: rhea on May 25, 2010, 04:30:30 pm ---Some changes are made, one at a time.
• The d.c. supply is reversed.
• The coil is turned before switching on, so that P starts on the right and Q on the left.
• The poles of the magnet are reversed.
• The turns on the coil are increased in number.
How many of these changes make the coil rotate in the opposite direction?
A 1
B 2
C 3
D 4
--- End quote ---
which paper ?? is there a diag. given ??
Raywin:
--- Quote from: jellybeans on May 25, 2010, 04:41:57 pm ---.... :o sryyyyy my brain isnt really absorbing much atm... so uh sry so why is teh no wait, Xp ummm how does the diagram show where the waves are traveling? D: ......sry
--- End quote ---
Lol.. :) the wavefront is shown (the weird line around the X) so where ever any options are NEAREST to this line is the ans.
MasterMath:
Rhea which question paper is your question from? about the changes done to the coil
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