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AS Physics P1 MCQs Preparation Thread.

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well , d positve charge is replled by a force awzy frm + terminal, da same 4 da - charge , whch will be replld by da same force, frm - terminal so equal magnitude, forces in opposte direction, zero resulatnt, if u conside da torque, da - charge attracts up while + charge down so anticlockwise.. hope u understand
alhamdulillah i id understand...thanx soo much!:)
 
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erm yea i want a detail explanation.... just dnt gt it:(
well , d positve charge is replled by a force awzy frm + terminal, da same 4 da - charge , whch will be replld by da same force, frm - terminal so equal magnitude, forces in opposte direction, zero resulatnt, if u conside da torque, da - charge attracts up while + charge down so anticlockwise.. hope u understand

got this detail from abdullah ash.......hope u get it...........
 
Messages
958
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3,499
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253
well , d positve charge is replled by a force awzy frm + terminal, da same 4 da - charge , whch will be replld by da same force, frm - terminal so equal magnitude, forces in opposte direction, zero resulatnt, if u conside da torque, da - charge attracts up while + charge down so anticlockwise.. hope u understand

got this detail from abdullah ash.......hope u get it...........
yea i did thanx:)
 
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Would someone be kind enough to help me in June 10 variant 2 question 34. (I know this has been asked hundreds of times before but I can't find the sol. now).
Also, Nov 09 variant 2 question 18.
part 1 i dont know
part 2
use formula pressure = density x gravity x height
so density = 15200/ (9.81 x 0.8)
1936 kg/m^-3
B is the ans
 
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Would someone be kind enough to help me in June 10 variant 2 question 34. (I know this has been asked hundreds of times before but I can't find the sol. now).
Also, Nov 09 variant 2 question 18.
okay... i kinda figured hw to do qn 1
i dont know if its the right way
since they have said the resistances r equal, i gave all the resistors a value of 4 ohms ( just to make things easier )
then i calculated resistance , total resistance would equal 6 ohms , since 4 ohms of P added to 2 ohms (Q and R are in parallel)
kay so then i did
12W = 6 ohms
? = 2 ohms
i got 4 W
i divided this by 2 since the power will be split btwn Q and R each getting 2W so i believe answer is A
 
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