Edexcel A Level Physics Paper 1: Advanced Physics I 9PH0 01 - 24 May 2023 [Exam Chat]

Original post by nic27683

that last page was not it. had no idea what to say. you?

Same lmao apparently u use the rms of V and I

Reply 62

Original post by Amin9127

What did you guys do for the induction stove q I was baffled I basically just explained how resistance increases so more wasted energy transferred to thermal

i made the same mistake. it was a magnetic flux and faradays law question

(edited 11 months ago)

Reply 63

Original post by Amin9127

What did you guys do for the induction stove q I was baffled I basically just explained how resistance increases so more wasted energy transferred to thermal

Magnetic flux and all the nonsense that follows it

Reply 64

Original post by Warren Fernandes

Magnetic flux and all the nonsense that follows it

how did u find the 6 marker on the LDR

Reply 65

Original post by nic27683

i made the same mistake. it was a magnetic flux and faradays law question

Huh how so please expand

Reply 66

Original post by nic27683

how did u find the 6 marker on the LDR

Ig it was calm

Reply 67

faisal_345

What did everyone get:
In the cricket question,was the batsman out??
dc motor?
Transistor question?

Reply 68

enrdegttve23

Original post by nic27683

have u done the test?

Yes I just dont remember all the q's lol

Reply 69

Original post by Warren Fernandes

Ig it was calm

What did u do for it I calculated the resistance of the LDR for the other resistance to have a 0.7v and the light intensity was huge so I put that it wasn't working as intended wbu

Reply 70

Original post by Warren Fernandes

Alternating pd -> alternating current -> generates alternating mag field in coil -> pan experiences a rate of change of flux linkage -> emfs induced in pan -> opposes change that creates it -> eddy current due to resistance in pan -> heats up (I didn't put the eddy currents bit)

Oof I was thinking that the eddie current wouldn't be able to heat it that much so I didn't go that route

Reply 71

Original post by Amin9127

What did u do for it I calculated the resistance of the LDR for the other resistance to have a 0.7v and the light intensity was huge so I put that it wasn't working as intended wbu

yeah i did the same, but apparently it did work

Reply 72

Original post by Amin9127

Oof I was thinking that the eddie current wouldn't be able to heat it that much so I didn't go that route

Pain

Reply 73

but loads of people in my class found it bad

Reply 74

Original post by nic27683

yeah i did the same, but apparently it did work

Yea I got it to work as well. Gave pretty good results

Reply 75

enrdegttve23

Was the transistor in parallel with the resisitor

Reply 76

faisal_345

What did you write in part B,does it heat faster when the frequency increases

Reply 77

Original post by Warren Fernandes

Yea I got it to work as well. Gave pretty good results

Oof how can you explain your steps

Reply 78

fergus.n.c

Original post by enrdegttve23

Was the transistor in parallel with the resisitor

No it was series I’m fairly sure - what did people get for the moments question?

Reply 79