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[6394]

i cant understand ques 2 part c!!!
HELP PLZZZZZ
 

[rahuldevnani93]

May/June 2004 - Q1 b) and c)
May/June 2004 - Q3 c) ii) Should we put a different variable resistor for each lamp in parallel or only one in the beginning.

May/June 2008 - Q1 b)
May/June 2008 - Q2 - Statement is yes, How to justify?

Please reply as soon as possible

http://www.xtremepapers.net/CIE/Cambridge%20IGCSE/0625%20-%20Physics/0625_s04_qp_6.pdf
http://www.xtremepapers.net/CIE/Cambridge%20IGCSE/0625%20-%20Physics/0625_s08_qp_6.pdf

[Fastal]

O/n 08 Paper 6
3b, its says draw best fit curve, but my teachher said it should be a straigt line
in the marking scheme it says "thin best fit line"

i dont understand. what do i do?

[haris94]

i cant understand ques 2 part c!!!
HELP PLZZZZZ
 

both predictions r correct

according to the readings in the table, potential difference in circuit 1 and 2 is more or less same
and in circuit 3, it is approximately half of 1 and 2

[holtadit]

O/n 08 Paper 6
3b, its says draw best fit curve, but my teachher said it should be a straigt line
in the marking scheme it says "thin best fit line"

i dont understand. what do i do?

A curve is a curve. It has to be a smooth curve like when you draw a cumulative frequency graph in math.

[Vin]

wat do we use in a thermocouple thermometer galvanometer or ammetre?

We can use an ammeter , galvanometer and also voltmeter /digital voltmeter 

[haris94]

O/n 08 Paper 6
3b, its says draw best fit curve, but my teachher said it should be a straigt line
in the marking scheme it says "thin best fit line"

i dont understand. what do i do?

i dont understand what the problem is
they say in the ms that it should be a thin line, not necessarily straight
a curve is a line too ---  its just a curved line

[Vin]

i cant understand ques 2 part c!!!
HELP PLZZZZZ
 

2 c) always remember "within the limits of experimental accuracy"

1. look at the readings given in table 2.1 .. this is an open ended question .. ans may be yes / no

for Yes .. values are approx. equal with diff. of 0.08 V (within the limits of experimental accuracy .. thts wat the ques says with in10%)

2.yes .. u say values are approx. half ..

[Vin]

May/June 2004 - Q1 b) and c)
May/June 2004 - Q3 c) ii) Should we put a different variable resistor for each lamp in parallel or only one in the beginning.

may 2004
Q 1 b) as my fellow mates here said use a wooden block to keep the electrodes in the same dist. .. wood is a bad conductor ..
      c) heat generated in wires ..

Q 3 c) jus one !! 

[Vin]

May/June 2008 - Q1 b)
May/June 2008 - Q2 - Statement is yes, How to justify?

Please reply as soon as possible

1 b) discussing this for the 50th time on this thread !!

use a pin n attach to the 10 cm mark .. mark the centre (diameter) if the cylinder with marker .. coincide this mark with the pin (u may also stick another pin on the diameter) .. read from 90^o to avoid parallax error ..

c) this one has also been discussed .. yes .. I in circuit 1 is double thn 2 ..

[Vin]

both predictions r correct

according to the readings in the table, potential difference in circuit 1 and 2 is more or less same
and in circuit 3, it is approximately half of 1 and 2

sorry didnt see u'd already answered .. 

[6394]

 lol i still didnt get this sent. cud u make it mor clear
 By the way Thanks 

[6394]

this sent LOL
"within the limits of experimental accuracy"
=D

[princess12]

good luck to all of u for tomorrow igcse

[haris94]

sorry didnt see u'd already answered .. 

no probs...... 


for calculating gradient, the ms says
triangle method seen
More than ½ line used
Gradient value correct

what do they mean by "more than 1/2 line used"   ??