Do you understand this A Level Physics problem?

[@zhelyo_physics]

How do you feel about paper 2?? Stay tuned for more videos today. Also note: around 01:25 I write E on the board, by this I mean electrical potential energy rather than the electric field. Electric Field = Qq/(4pie0r^2) Energy=Qq/(4pie0r) : ) GOOD LUCK!

[@theodirisu8691]

need to drop a cheeky 90% to compensate for how paper 3 will mutilate me

[@marshallmanz123]

The P.E decreases. Basically the work done/energy invested against the conservative force is stored as Potential energy. Here since the motion is along the direction of conservative force, the re is a net decrease in P.E

[@marshallmanz123]

Sir, can you make a video explaining the virial theorem and it s applications(one of which explains why the total energy of an electron is half of it s potential energy)?

[@zhelyo_physics]

already done! It came up on the Oxford PAT exam: kzbin.info/www/bejne/eX6UiWWbgc-KjNE Hope this helps : )

[@M7RAA]

what a legend, thanks man. i would not have such good understanding of physics without your videos and the enthusiasm you display. Thank you very much kind sir.

[@zhelyo_physics]

great to hear! Thank you so much for the comment! Very much appreciated!

[@HH1-n1x]

How does the Epe increase for the - particle if it moves towards the negative plate ( from 1 to 2 )

[@zhelyo_physics]

Imagine trying to compress a spring, (like moving to the negative plate), you will have the potential for the electrons go repel each other once you stop holding them in place. Or similar to trying to hold two north poles in place. Hope these analogies help!

[@abrahamblackman8424]

thanks mate you’re videos have saved my exam

[@zhelyo_physics]

anytime, good luck tomorrow!!

[@bengogoi7019]

physics paper 2 tomorrow Gang

[@zhelyo_physics]

Good luck!

[@xylem8823]

r is measured from where?

[@zhelyo_physics]

r is the distance between the two charges if there was another charge in the distance somewhere causing a field.

[@xylem8823]

@@zhelyo_physics ok thank you!

[@xylem8823]

@@zhelyo_physics oh and what would the Electric potential be if they were both positive or both negative. is it 0 aswell

[@Endermanv-ot2if]

Trivial

[@zhelyo_physics]

My maths professors always used to say this! : )

[@Endermanv-ot2if]

@@zhelyo_physics At Manchester? Its because they knew how true it really was.

[@Endermanv-ot2if]

@@spoonky7243 trivial