We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
Click here to Donate Now (View Announcement)
when you draw your line of best fit,does ur line pass above all the points,like are all the points on ONE side of the line or are they evenly distributed on both sides (above and below)?maybe there is some plotting error
see the question says wen the diode just begins to conduct;may be thx
even int he mcq's for question 4 why is the answer D
its evenly distributed, below and above the line
THANK you soo muchsee the question says wen the diode just begins to conduct;
first of all we eliminate the choices which do not have a variable supply, coz diode needs a variable supply
so eliminate choice B and C. so we have A and D left. now see , which part of diode is connected to the battery in A it is forward biased which gives maximum current (doesnt give enough time to note down the pd across diode, see knee voltage) In D, it is reverse biased, in reverse biased the range is longer (see till leakage current, breakdown voltage is after this) Thus u can note down the reading wen the diode just begins to conduct.
have you done 2010 may paper .its evenly distributed, below and above the line
yup
cool . i have doutb and the problem is i dont understand the first mcq. how are u supposed to knw which one to choose ?? thx
Yea,I have that doubt too,a little help here?
Set the range so the maximum is well above the highest reading expected. This will protect the meter from getting overloaded. If you overshoot the range and cannot get a reading, set it lower.Read more: How to Measure Amps With a Digital Multimeter | eHow.com http://www.ehow.com/how_5073254_measure-amps-digital-multimeter.html#ixzz1uU6ktT5Mcheck this out might help
ive solved it wht problem do you have in it
Oww ok thanks alot you really helped me outBuddy,u draw the connecting line,and then draw the normals at BOTH (A and B)
now focus on A,measure angle i and angle r and do the sini/sin r
get value for n
now focus on B,do same as A
get value for n
Now average both of them out,and thats your final answer
dont get freaked out by the fact dat its for SEVEN marks! its very simple as Jack so nicely explained
For almost 10 years, the site XtremePapers has been trying very hard to serve its users.
However, we are now struggling to cover its operational costs due to unforeseen circumstances. If we helped you in any way, kindly contribute and be the part of this effort. No act of kindness, no matter how small, is ever wasted.
Click here to Donate Now