Qualification > Sciences
ALL PHYSICS DOUBTS - POST HERE !!
holtadit:
--- Quote from: Snake on May 25, 2010, 01:44:24 pm ---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?
--- End quote ---
Ignore the values for the wire and everything else.
CONCENTRATE ON THE COMPONENT !!!!!!
Look at its max current. Got it ? Now select a fuse with a value just a little bit higher than the MAX CURRENT FOR THE COMPONENT
It should be B ;)
8T:
#34=C, using Flemings grip rule for this one, you will find the current, and thus the direction of the Magnetic field
Snake i do not understand this one ..care to repeat in a different way ?
Moonlyte:
--- Quote from: Snake on May 25, 2010, 01:40:31 pm ---#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 :)
--- End quote ---
thank you very much!
holtadit:
--- Quote from: 8T on May 25, 2010, 01:49:13 pm ---#34=C, using Flemings grip rule for this one, you will find the current, and thus the direction of the Magnetic field
Snake i do not understand this one ..care to repeat in a different way ?
--- End quote ---
HERE
Click to enlarge
8T:
Ari you are so creative in your methods of transferring info.
Thanks Once again :]
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version