How'd your physics Papers go ?

[Mayedah]

Option C i.e by vibration of atoms and the movement of electrons.

shayad it was c.

Thnx
I got this one wrong !

 

[ISFSAT]

Wht was the answer to the mcq in which they asked ways for conduction in metal !
Wasnt it atoms only ?

no vibration of atoms + movement of electrons

 

[moiz 95]

Thnx
I got this one wrong !

thanking for making u loose a mark....

 

[ISFSAT]

Q9 last part was asking for the power produced by the transformer's ac output. Voltage was 240V, current was already given as 1.6A. Hence P=VI. It was for 2 marks. 1 mark for P=VI, 1 mark for the correct answer i.e 384W.

absolutely correct..

 

[moiz 95]

last question was the powerloss...= I^2 x R

 

[Mayedah]

thanking for making u loose a mark....

Haha na i already had doubt with tht one !

 

[UziB]

it was asking for current not power...

Q9 second last part was asking for the power produced by the transformer's ac output. Voltage was 240V, current was already given as 1.6A. Hence P=VI. It was for 2 marks. 1 mark for P=VI, 1 mark for the correct answer i.e 384W.

 

[ISFSAT]

last question was the powerloss...= I^2 x R

yup.... power loss= (1.6)^2*5=12.8w

 

[UziB]

last question was the powerloss...= I^2 x R

Yes sorry I mean't the second last part. Last part was without a doubt power loss = I2R or V2/R.

 

[moiz 95]

wat i remember is that watt was also given.......

 

[moiz 95]

UziB u see wat i know is that we never use formula P=VI wen a question on transformer come......we use I= Pout/voltage.or ploss=I^2 *R...

 

[M Haseeb Javed]

No way!
Dont make us lose a mark!
Whats the procedure?

I did the same. 300*(60*60) cuz we had to give energy.

 

[M Haseeb Javed]

Wht was the answer to the mcq in which they asked ways for conduction in metal !
Wasnt it atoms only ?

no vibration was also there

 

[asad.manutd9]

Actually you can count on the percentile to be pretty high, it was an easy paper and everyone seems to have done well.

DONT SCARE ME

 

[17194]

DONT SCARE ME

Whatever you have to tell yourself to feel better go ahead, but facts are facts and the fact is, this was an extremely easy paper and most people did pretty good.

 

[asad.manutd9]

Whatever you have to tell yourself to feel better go ahead, but facts are facts and the fact is, this was an extremely easy paper and most people did pretty good.

 

[Dukeofwin]

no vibration was also there

Yup, the option was C

 

[twelveoclock]

UziB u see wat i know is that we never use formula P=VI wen a question on transformer come......we use I= Pout/voltage.or ploss=I^2 *R...

That part didn't concern the transformer anymore. It was just talking about electricity in the circuit so we could use P=VI

 

[gigglingstar]

What was the ans of mcq 7...force on p?

 

[ISFSAT]

What was the ans of mcq 7...force on p?

5N