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ALL PHYSICS DOUBTS - POST HERE !!
Raywin:
--- Quote from: misterioso on May 25, 2010, 01:58:33 pm ---Can someone explain to me how the answer is B. I understand it has something to do with the capacitor, but why is it that voltmeter two is zero at all? Wouldnt none of them have become zero? Can anyone explain how the capaciter is working in this circuit???
I apologise for the crude picture
--- End quote ---
The ans is B. This is cause there is a complete circuit between volt meter 1 and the battery when the switch is opened. And the capacitor will be charging when the switch is closed. When the switch is opened again, it will discharge thus volt.meter 3 will show voltage. Thus these two volt. meters will show some voltage. So ans is B. Hope u got me.. :)
8T:
Raywin ..I didnt.. More explanation please.
ambitious94:
I have a new question XD
What are nucleons? Neutrons or all the particles present in the nucleus?
Also
The north pole of a bar magnet is placed next to end P of an iron bar PQ, as shown. As a result,
magnetic poles are induced in the iron bar.
S (magnet) N iron bar-->P Q
What are the magnetic poles induced at P and at Q?
magnetic pole at P magnetic pole at Q
A north north
B north south
C south north
D south south
Answer's C. I dont get it...I thght the N pole induced an N pole....:S
8T:
Nucleons are protons + neutrons.
& Induction therefore attraction.. N IS ATTRACTED TO P.. And a magnet cannot have 2 north poles or south so the other one is south = C
rhea:
--- Quote from: ambitious94 on May 25, 2010, 02:09:57 pm ---I have a new question XD
What are nucleons? Neutrons or all the particles present in the nucleus?
Also
The north pole of a bar magnet is placed next to end P of an iron bar PQ, as shown. As a result,
magnetic poles are induced in the iron bar.
S (magnet) N iron bar-->P Q
What are the magnetic poles induced at P and at Q?
magnetic pole at P magnetic pole at Q
A north north
B north south
C south north
D south south
Answer's C. I dont get it...I thght the N pole induced an N pole....:S
--- End quote ---
actually i got a doubt related to this..
i always thought to induce magnetism, you have to stroke a magnet with the magnetic material.
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