Qualification > Sciences
Edexcel PHYSICS Doubts
yo2646126:
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jenifer911:
Oh my mistake, thanks:)
astarmathsandphysics:
--- Quote from: jenifer911 on April 02, 2013, 12:27:13 pm ---Hi everyone,
Could any one solve the following problem for me??? it can be found on the edexcel a2 physics book p.41 Questions 4.
4. In the electron beam of a CRO, electrons are accelerated through a potential difference of 3000V which is set up between electrodes 3cm apart.
a)Calculate the electric field strength, assuming it is a uniform field
b) How fast will the electrons be moving when htey emerge from this field?
Im having problems with (b), the answer 1.62 x 10^7 m s-1 while my calculations are double it i.e. 3.25X10^7ms-1
Thx in advance!!
--- End quote ---
a)E=V/d=3000/0.03=100000 V/m
b)
so
studx3m:
hey ppl!! m really really struggling with uncertainty precision and accuracy calculations!!!! please help meee (a2 unit 6 edexcel)
also can anyone tell me why the answer is C to may 2010 unit 3b edexcel physics??
m a private student in physics! so i have no idea how to prepare for unit 6!!! any practicals that i have to know??
astarmathsandphysics:
I dont have the paper and it is not on the edexcel website.
Canyou post it?
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