How can I expand my extended essay subject?

AI Thread Summary
To expand the extended essay on direct current measurement techniques, consider discussing both voltage and current measurements, as well as resistance measurements. Additionally, explore the role of the meter's impedance in these measurements, including aspects like lab tolerances and error propagation. Incorporating a prologue that acknowledges support from parents and teachers can also enhance the essay. Clarification on whether data tables count towards the word limit should be sought from the teacher. Focusing on these areas can help reach the required word count.
nrslmz
Messages
14
Reaction score
0

Homework Statement


Hi, I have chosen direct current measurement techniques as my extended essay subject. I've written only 2000 words, but I am completely out of anything to write.
I can't do alternative current, because I don't have the necessary apparatus.
How can I expand my subject so I can fill out 4000 words?

Homework Equations





The Attempt at a Solution

 
Physics news on Phys.org
Have you talked about:

  • both voltage and current measurements?
  • resistance measurements?
  • the role of the meter's impedance (resistance) in the measurements?
 
Don't forget lab tolerances and error propagation and a prologue thank you to your parents and inspirational teachers.
 
Thanks, I was about to forget about those. I haven't checked the impedance either. Another question is, shoul data tables be added to the word count?
 
nrslmz said:
How can I expand my subject so I can fill out 4000 words?

:rolleyes: It's the opposite that's the real rare valuable talent out there in the big world. :cool::wink:
 
nrslmz said:
Another question is, shoul data tables be added to the word count?

You'll have to ask your teacher.
 
Thread 'Variable mass system : water sprayed into a moving container'
Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
Back
Top