physics november 2012

[ni2005]

Could someone please remind me of the relay question, I attempted the last question but did not see anything related to reed switches or relays.

i did the diagram of a relay, i 4gt the question too but there was no mention of reed switch, just "draw the diagram of a relay and explain how it can be used to switch on the motor"
even i wrote pretty much the same thing about the pressure question, the molecules had to apply a bigger force per unit area to counteract the bigger pressure due to the depth

 

[aneeq247]

i did the diagram of a relay, i 4gt the question too but there was no mention of reed switch, just "draw the diagram of a relay and explain how it can be used to switch on the motor"
even i wrote pretty much the same thing about the pressure question, the molecules had to apply a bigger force per unit area to counteract the bigger pressure due to the depth

But there was no motor part on the last question. I did the question where we had to predict the direction of the wire PQ.

 

[Nerdz]

But there was no motor part on the last question. I did the question where we had to predict the direction of the wire PQ.

The motor question was the last question is section B. did you do paper 21 or 22?

 

[aneeq247]

22

 

[Nerdz]

22

Its was on the very very last page! which questions of Section B did you do?

 

[aneeq247]

Its was on the very very last page! which questions of Section B did you do?

All except the one about the light filament. Could you tell me some other parts of the question?

 

[aneeq247]

I looked over the paper like 10 times, every sngle page, but didnt see anything related to relays. Was this part of the question about the light filament?

 

[aneeq247]

Somebody help me out, Im scared.

 

[arshadphysics]

i just got an idea !!! why dont we post our answers here during after the exams ?? right !!

 

[aneeq247]

dude im just worried that i might have missed a question, help me out bro

 

[Nerdz]

dude im just worried that i might have missed a question, help me out bro

it wasnt part of the light filament thing. The previous question asked why thicker cables are used for the starter motor

 

[aneeq247]

yeah i did that one, how many marks was the relay part worth

 

[Nerdz]

yeah i did that one, how many marks was the relay part worth

3 marks

 

[aneeq247]

Was it the last part of he question?

 

[aneeq247]

So I lost 3 marks. Oh well.....

 

[arshadphysics]

yeeaahh!!! but i got it wrong!anyways, what about the energy changes, the bungee jumping one?

what answer was iy then ?

 

[aneeq247]

bhai jaan ...akhain khol k paper karna tha na ..
and what about the rise in temprature due to piston wat was the answer ? ?
i got above 600 degree .. i think ...what did u get ?

yeah i got 630

 

[arshadphysics]

which answer have you got for section B number 11 part a ??

what if i have not written my full name ????