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Can anyone plz tell me why a capacitor is needed and give me an exact definition of analogue and digital?
Thnx!
Thnx!
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Im confused here too, there is a capacitor i think its A.Answer = D?
I think it is voltmeter 2 I'm not sure there is no marking scheme for this paper also :/Answer = D?
The answer to this is B (that is confirm, saw it in the ms)can someone help me ? explanation also pleaseView attachment 53903
Yes, it is voltmeter 2I think it is voltmeter 2 I'm not sure there is no marking scheme for this paper also :/
Hey!
can anyone help me with this i dont understand the explanation of part (ii) in the mark scheme View attachment 53909
here is the mark scheme
View attachment 53910
1) To improve its sensitivity: narrow tube, larger bulb and readings should be further apartAlso they normally ask questions about the thermometer! Like how to improve its sensitivity, range, linearity, and even expansion and stuff? Can anyone tell me the answers for tha.
2) When we are drawing the refracted and reflected waves in water, is there any trick for it?
The source is the same distance behind the barrier as in frontCould someone please help me how to solve Oct/Nov 2014 Physics Paper 31 Question 6 b??
Sensitivity is when a slight change in temperature produces a reading, so the narrower the diameter of the capillary, the further the liquid will travel and so a visible reading will be produced more quicklyHey!
can anyone help me with this i dont understand the explanation of part (ii) in the mark scheme View attachment 53909
here is the mark scheme
View attachment 53910
How do you have the ms of that paper ???????The answer to this is B (that is confirm, saw it in the ms)
The cell's voltage will never be zero whether the switch is open or close
And the capacitor, since it stores the charge and so will show voltage across it
As for the voltmeter 2, it is a normal resistor and so will show a zero voltage cuz the circuit is open
Thank you very much and pls will u explain that volume of gas in balloon question again, if you do pls explain each and everything you do in the solutionSensitivity is when a slight change in temperature produces a reading, so the narrower the diameter of the capillary, the further the liquid will travel and so a visible reading will be produced more quickly
no idea and yea it is quite similarThats similar to the question I was asking above
I think we just anwer
THE SMALLER THE DIAMETER OF THE CAPILLARY, THE GREATER DISTANCE MOVED BY THE LIQUID/THREAD.
Btw Can we use EXPANSION IN THis answer anywhere??
Anyoneee? Pleaseee answer that.
ThanksThe source is the same distance behind the barrier as in front
So take a compass, put it on the reflected source (on the other side of the barrier) and complete the circles in a way that they look like they were reflected
It should look like this at the end:
View attachment 53911
Thanx Iris ...that was helpful for me too... ..so will I get the mark if I do that way or not?Hope you don't mind me answering.
But for the force in F=ma, you take the resultant force.
There is an upward force acting on the brick, 14.7N and a downward force weight, (3.09 * 10N= 30.9)
Resultant force is 16.2N
16.2/3.09 = 5.24ms^2
3 s.f are acceptable tooare we supposed to round our numerical answers in physics to 2 significant figures ?
because it doesnt make sense but all the answers in the mark scheme are rounded to 2 s.g.f
Welcome..... This is the Allocation:Thanx Iris ...that was helpful for me too... ..so will I get the mark if I do that way or not?
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