Edexcel Unit 4: Physics on the Move 6PH04 (11th June 2015)

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we actually discussed this question in this thread a while back, but someone said the wording on the question was wrong according to their teacher and I was told current through a circuit shuts out faster when switch is opened, opposed to closed, even though it's a very very short fraction of time, that's the difference.. something to do with "switch mechanism"

I really would like to read about the switch mechanism if you could find a link because I've never heard about it and it doesn't come into any of the physics I've been taught... Worrying if I go into the exam and write about something wrong lol
Thanks :smile:

Reply 181

MARKMARKMARKMARK

I am so ****ed for this exam

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Reply 182

Freddy-Francis

alrite. Unit 4 next :frown:

and c3 the day after

Reply 183

rabia reha

anyone has the january 2015 unit 4 and 5 qp and ms?

Reply 184

Freddy-Francis

Original post by rabia reha

anyone has the january 2015 unit 4 and 5 qp and ms?

I could find it for u if u really need it

Reply 185

cerlohee

Original post by rabia reha

anyone has the january 2015 unit 4 and 5 qp and ms?

its on physicsandmathstutor send a request and he'll automatically send it to you

Reply 186

cerlohee

Please someone explain the switch mechanism!!

Reply 187

Freddy-Francis

Original post by Freddy-Francis

I could find it for u if u really need it

https://drive.google.com/folderview?id=0B1ZiqBksUHNYak5FZDJHS1ZSTHM#list

Reply 188

Ambrina

https://ad57adc4f6eb5ea42b541057f16290e611d4e42b.googledrive.com/host/0B1ZiqBksUHNYcHRSNUJpeFpqNXM/January%202014%20(IAL)%20QP%20-%20Unit%204%20Edexcel%20Physics.pdf
In 13(b) (ii) Can someone tell me why the right wing gains the positive charge??

Reply 189

imedico10

Original post by Ambrina

Flow of conventional current is left to right so electrons flow right to left making the right wing positively charged

Reply 190

rabia reha

Original post by cerlohee

its on physicsandmathstutor send a request and he'll automatically send it to you

i tweeted him.. will that work? or is there some other way?

Reply 191

imedico10

Can someone help me with question 6 on june 2011 please
http://qualifications.pearson.com/content/dam/pdf/A%20Level/Physics/2013/Exam%20materials/6PH04_01_que_20110621.pdf

Why is the answer B?

Reply 192

rabia reha

Original post by Freddy-Francis

https://drive.google.com/folderview?id=0B1ZiqBksUHNYak5FZDJHS1ZSTHM#list

there are no physics papers... can u pls check...
n thanx alot for trying to help me...

Reply 193

Wannabe007

Original post by rabia reha

there are no physics papers... can u pls check...
n thanx alot for trying to help me...

This dude has a jackpot of the latest papers, found his blog randomly while searching for Jan'15 papers.
http://56leomessiphotoshop.blogspot.ae/p/edexcel-ial-exam-materials.html

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Reply 194

username1162972

Just did June 2011 and remember some people needing to clarify some things, I did fairly well so I can explain.

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Reply 195

Ambrina

Original post by physicsmaths

Just did June 2011 and remember some people needing to clarify some things, I did fairly well so I can explain.
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MCQ number 6? Why is the answer B?

Reply 196

username1162972

Original post by Ambrina

MCQ number 6? Why is the answer B?

We need an emf induced so we must have a change in flux linkage by opening the switch. Using right hand grip rule you see the field through the other coil then current is induced in same direction

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