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Unit 4 Physics Edexcel A2 and Edexcel IAL

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Reply 220

PhysicsIP2016

Original post by ayvaak

Posted from TSR Mobile
Thank you :smile:

do you by any chance know why we dont times the answer by sin30?

It's not sin30 because the side you are shown is QP. Side QS is pointing into the paper so no matter how much the coil is rotated it is always perpendicular to the magnetic field :smile:

(edited 7 years ago)

Reply 221

ayvaak

Original post by PhysicsIP2016

It's not sin30 because the side you are shown is QP. Side QS is pointing into the paper so no matter how much the coil is rotated it is always perpendicular to the magnetic field :smile:

thank you

Reply 222

sabahshahed294

Original post by munzariiiin

Hi. Can someone please explain and show this to me? This is June'12, Q-18)c)

Do you know the head to tail rule for vectors(this was taught in AS)? Simply use that rule and since momentum is to be conserved, we will get a closed polygon.

Reply 223

Mowerharvey

Good luck for tomorrow everyone

Reply 224

ayvaak

Original post by Mowerharvey

Good luck for tomorrow everyone

thanks and you :smile:

Reply 225

mrbeady9

What's the worst that can happen...

Famous last words.

Reply 226

Maetras

I really hope I don't screw up the exam. Luckily my uni doesn't require a grade in physics for maths haha.

Reply 227

Rahatara Sadique

Hi. Can someone explain me the answer for June 2014 IAL Q15 c ii?

Reply 228

smaviyaamjad

I get C
Use flux=NBA so 50*0.002*0.0004 (because area is given in cm^2)

Reply 229

XxKingSniprxX

Good luck to everyone sitting this exam tomorrow! #LetsGetIt :moon:

Reply 230

omar5478

Original post by mrbeady9

What's the worst that can happen...

Famous last words.

Exactly !! I am pretty sure I am gonna get fisted by a conducting rod.

Reply 231

TheMadHatteress

hey guys how did your exam go? personally i found it to be average- june 2015 was much easier than this. but a lot of people are saying it was extremely easy?

Reply 232

uptownfunk

Ive started a new thread for IAL exams so that we can have a separate discussion, please join in at:

http://www.thestudentroom.co.uk/showthread.php?t=4176182&p=65941342#post65941342

Reply 233

munzariiiin

Original post by sabahshahed294

Do you know the head to tail rule for vectors(this was taught in AS)? Simply use that rule and since momentum is to be conserved, we will get a closed polygon.