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thanksyup.
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thanksyup.
You are right. There is force on the particle only when its motion is cutting or crossing the magnetic field lines.View attachment 61562
the ans of (ii) is no force ...is this because motion of particle is parallel to magnetic field?
For this one, can you provide part (b) of the question?View attachment 61563
(i) no change
(ii) upward
(iii) no change
can anyone plzz explain me the reason for these ans
thank u but i understood this qtnYou are right. There is force on the particle only when its motion is cutting or crossing the magnetic field lines.
For this one, can you provide part (b) of the question?
http://papers.gceguide.com/A Levels/Physics (9702)/9702_m16_qp_42.pdf
qtn 10(b) of 9702_m16_qp_42
http://papers.gceguide.com/A Levels/Physics (9702)/9702_s14_qp_41.pdf
qtn 10(a) & b(ii)
plzz help.....
Q. When a potential difference V is applied between the ends of a wire of a diameter d and lenght l, the current in the wire is I. What is the current when a potential difference of 2V is applied between the ends of a wire of the same material of diameter 2d and the lenght 2I?
SOMEONE PLS HELP WITH THIS Q!
THANYOUUU YOU MADE IT SO EASY! I was trying to solve it in twisted wayResistance is proportional to length, and inversely proportional to diameter/radius squared.
Let the resistance of the first wire be R.
Resistance of second wire = 2*(1/4) R = 0.5R
Current = 2V/0.5R = 4I
THANYOUUU YOU MADE IT SO EASY! I was trying to solve it in twisted way
Hey there. I haven't read those points as I am sure you would have checked from marking scheme. Answering your question you can do whatever you want but I would strongly encourage you to write in paragraph format. I will tell you my personal experience about paper 5; I started it with writing in point format as that looked quick and easy method and as all the points if I cover in point format then no need of paragraph format, I use to get full marks in method but wasn't able to score in additional details. I thought lets try paragraph format may be that could help me. AND IT DID!!!!!!!!!!!!!!!!!! BINGO! In paragraph format there were many things that I could included which I was unable to add in point form, idk why, but the para foormat worked great with me I started getting 28 or 29 or 30 marks with that. So it all depends on you. If you can cover all points in point format then GO FOR THAT! but if u have problem like me try the way I did. xDThis is paper 5 of 2015. I wanted to ask if the way of writing is okay ? Particularly if i should write in continuous prose or if points are fine
In this you can find it. Good luck.Pls can I get electric fields A2 notes with explanations on how to plot the graphs in it
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