Qualification > Sciences
ALL PHYSICS DOUBTS - POST HERE !!
Snake:
#30=C, This is because resistance in Parallel is always lower then series, this means it has to be be either C or D, however D contains a resistor so its not D and hence it has to be C.
#30=D, this is because electrons go from - to + thus if D is broken electrons will not flow to the other lamps.
#34=C, using Flemings grip rule for this one, you will find the current, and thus the direction of the Magnetic field
#37=A, Anode is always positive(this is to sharpen the image or make it more clear) remember the cathode emits NEGATIVE electrons thus the top Y plate has to be positive for it to move upwards.
Hope it helps Moonlyte :)
8T:
Thanks A Lot Ari .
holtadit:
--- Quote from: 8T on May 25, 2010, 01:42:14 pm ---Thanks A Lot Ari .
--- End quote ---
Glad I could help :)
Moonlyte:
--- Quote from: 8T on May 25, 2010, 01:36:55 pm ---For # 30 take say 5 for each resistor and remember that in C it is connected in parallel and that u use the equation R=R1*r2 over(divided by)R1+R2
I will check the rest and come back to yew dear :)
--- End quote ---
ooohhhhh now i get it! Thankss a loott!
Snake:
Ok I only don't understand this from the whole syllabus (excluding some atomic physics stuff)
Q33 P1 Nov/Oct 2008 http://www.freeexampapers.us/IGCSE/Physics/CIE/2008%20Nov/0625_w08_qp_1.pdf
I don't get why it is B?
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