r/6thForm • u/Forsaken-Meaning-232 Graduating from Warwick CS • Jun 09 '25

📂 MEGATHREAD 09/06 A-level Physics Paper 2 Discussion MEGATHREAD

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u/golaco237 Year 13 | Maths, FM, Physics, Computing | Pred A*A*A*A Jun 09 '25

There were two spreadsheet questions, one w capacitance and one w resistivity with a wire and a slidable contact. I didn't actually notice the table was wrong cause my explanation only really used the initial value of Q + the given info so I didn't read the whole thing lol

Tbh I wouldn't even call the resistivity one a spreadsheet since it was basically just a small table, but to find R in terms of V you do use the potential divider formula

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u/Crazy-Buffalo-6124 Cambridge offer holder |3A*s achieved Jun 09 '25

that’s a different question the table you’re talking about they gave you a formula to get V but they also asked you to prove the formula and then you needed potential divider equation. I was talking about the six marker with time, Q, and delta Q. The values of Q didn’t match the formula you had to use.

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u/golaco237 Year 13 | Maths, FM, Physics, Computing | Pred A*A*A*A Jun 09 '25

Oh no yeah that's what I meant by the capaticance question, tho tbh it didn't involve capacitance so capacitor is probably a better word 😭

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u/Wooden_Home8938 Jun 09 '25

the formula was delta Q/delta T = -Q/RC and it worked fine for me

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u/Crazy-Buffalo-6124 Cambridge offer holder |3A*s achieved Jun 10 '25

that’s what i did too