Qualification > Sciences
Edexcel PHYSICS Doubts
wakemeup:
--- Quote from: Hermione Jean Granger on June 20, 2011, 04:05:11 pm ---That's good. :D
Lemme know if you don't.
For value of T, I took 16 ms. :)
--- End quote ---
Yes, but how? Are you supposed to take a period, because that's about 10 and nowhere near the range in the mark scheme.
Romeesa-Chan:
--- Quote from: wakemeup on June 20, 2011, 04:08:53 pm ---
Yes, but how? Are you supposed to take a period, because that's about 10 and nowhere near the range in the mark scheme.
--- End quote ---
Okay. This seems crazy but I tried it this way! (makes sense to me though)scratch that 16ms previously
See the previous graph: The time is constant from 8ms to 28 ms. The double peaks in the graph.
Time constant is always the same for every circuit. So we have 20ms for T value.
Does that make sense?
Romeesa-Chan:
Any more doubts? I will be leaving now. (:
wakemeup:
--- Quote from: Hermione Jean Granger on June 20, 2011, 04:36:01 pm ---Any more doubts? I will be leaving now. (:
--- End quote ---
No, but thanks for all your help. That is the only chapter that's still not super clear to me. I'll just keep my fingers crossed and hope they don't ask any super complex question from that (or any other chapter) tomorrow.
Thanks again.
Dangerous99:
Hey can somebody please help me out with physics unit 5?? ???
I dont get question 9 from june 2010 paper. It says For a black body radiator, the frequecy at which maximum radiation of energy occurs is proportional to?
a) T^-4
b) T^-1
c) T
d) T^4
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