Exam Hack | CIE A2 Physics | Structured | Capacitance Question
Added 2023-08-19 23:02:25 +0000 UTC
Comments
Yup, slight typo I guess, maybe he rushed it but its in kΩ so 46(000 Ω of course)
Shareq
2024-09-06 20:40:29 +0000 UTCWouldn't the resistance for the 2nd question c) (ii) be 46 instead of 4.6?
Myles Taaziva
2023-10-05 03:13:46 +0000 UTCSo you just multiply the y value from t=0 by 0.37 then the answer you get you just see where it touches the graph then the x value of that point is your time constant correct? (sorry if I'm literally repeating what you said just want to understand in my own words) and is it always for every case and question going to be 0.37*y value?
Myles Taaziva
2023-10-05 03:06:05 +0000 UTCJust an additional note for finding the time constant for anyone watching: When the original value of the y axis value decreases to 37% of its original value (y value*0.37), the y value you get from that will correspond with the time constant. For example, the question from 26:38 Original y value (for Q) = 0.9*10^-3. (0.9*10^-3)(0.37) = 3.33*10^-4 (RC or time constant value) Then just visually match 0.33*10^3 as Intuitive shows. Happy studying!
Aydan Neveling
2023-09-19 16:47:50 +0000 UTChello could you please upload videos for p3 and s2
Dhruvi Jain
2023-08-30 16:26:37 +0000 UTCYep that’s next
Intuitive
2023-08-22 22:22:40 +0000 UTCgreat video , please do magnetic fields next ?
Mzi Mabs
2023-08-22 15:38:38 +0000 UTC🫶🫡🫡
Yemane Teklesenbat
2023-08-20 01:17:31 +0000 UTC
