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Exam Hack | CIE A2 Physics | Structured | Electric Fields Question
🕑 Added 2023-08-12 21:27:21 +0000 UTC
Comments
Vinay Sabhnani
hey dude thanks for all the help, but please correct the electric fields question number 15's b(i) as you wrote mistakenly that its 0.428 but its actually 0.0428
Indro Casalini
toda la razon bro
Officialnth
hi, i really need help, wouldnt a graph of electric field strength agaisnt distance of 2 positive spheres look the same as the graph of 2 oppositely charged spheres? if not then why? im so confused.
Indro Casalini
in 15 b) i) the answer is 0.0428 not 0.428
Myles Taaziva
Yeah my bad I meant to say mathematically similar. Thank you for that!
Intuitive
For these definitions just look at the equations and outline the proportionalities in play.
Intuitive
They’re not related to each other, one deals with the relationship between charge and the other mass. But they do take similar forms mathematically. For Coulomb’s law (F = kQ1Q2/r^2) where k is a constant so F ∝ Q1Q2 & F ∝ 1/r^2 “The magnitude of force between two point charges is directly proportional to the product of the magnitude of the charges and inversely proportional to the distance of the square between them” (This is the most formal way to put it)
Myles Taaziva
So since Coulomb's Law is in a sense related to Newton's Law of Gravitation, if a question says state Coulomb's Law would the answer be "the force of attraction between 2 charged particles is directly proportional to the product of their charges and inversely proportional to their separation squared"?
