Phy p 41

[tysler]

yeah

No I think working backwards was the only way to answer that question. Yeah I also got 356 K, and I also found it confusing. First I thought of using PV/T=PV/T but that didn't work out. And 356 K seems reasonable compared to the initial temperture they gave us of 300K.

No I think working backwards was the only way to answer that question. Yeah I also got 356 K, and I also found it confusing. First I thought of using PV/T=PV/T but that didn't work out. And 356 K seems reasonable compared to the initial temperture they gave us of 300K.

yeah same, my working was so untidy cause i kept cancelling out, the pressure in container B must have been distractor information

 

[Hadaya]

i got 0.19

Yup I even got 0.19 but I rounded it to 0.2

 

[Hadaya]

For the electric charges one, last part, it was yes or no, that the particle reached the charge sphere ??

 

[Hadaya]

For the transformer question, we had to consider voltage at primary as peak or r.m.s ??

 

[Starry_night]

For the transformer question, we had to consider voltage at primary as peak or r.m.s ??

Was the value they gave us of 9 V peak or rms?

 

[Hadaya]

9v was r.m.s at primary coil

 

[Starry_night]

9v was r.m.s at primary coil

Ok, then I think you could change this value to peak first and then apply the turns-ratio equation to find peak in secondary coil. Or you could directly find the rms at secondary coil and then chage the result to peak. What did u get there?

 

[Ashique]

9v was r.m.s at primary coil

Then we have to do 9/ sqrt 2

What happened in the gas question? I found that so confusing!

 

[Hadaya]

Oops. First I converted it into peak then I thought maybe its wrong and I considered r.m.s and for the voltage at secondary :/

 

[Hadaya]

Oops. First I converted it into peak then I thought maybe its wrong and I considered r.m.s and for the voltage at secondary :/

I did that wrong

 

[Hadaya]

What was the energy produced in the nuclear fusion reaction ?

 

[Thampi4]

Guys for the charged sphere question I got that the particle does not reach sphere

Did it say that I had to use the equation I derives in the previous question to solve it
I didn't use the equation directly

 

[Starry_night]

What was the energy produced in the nuclear fusion reaction ?

I think I got like 3.something x10^-12. Did anyone else get something like this?

 

[Hadaya]

I got similar to this. We had to e=mc(square) ?

 

[Hadaya]

What was the answer of the wavelength of amplitude modulated wave ? I did it using the relation E=hf and E= hc/(lambda), did alone did like that ?

 

[marz_katy]

What was the answer of the wavelength of amplitude modulated wave ? I did it using the relation E=hf and E= hc/(lambda), did alone did like that ?

we dint knw value of e did we? i used nrmal wave eqn....v=lamda*f...cz we knew the freq and speed of wave is 330

 

[Soldier313]

Guys for the charged sphere question I got that the particle does not reach sphere

Did it say that I had to use the equation I derives in the previous question to solve it
I didn't use the equation directly

yep i think we had to use the eqn.

 

[Starry_night]

What was the answer of the wavelength of amplitude modulated wave ? I did it using the relation E=hf and E= hc/(lambda), did alone did like that ?

I used v=lambda x freq of carrier wave.

we dint knw value of e did we? i used nrmal wave eqn....v=lamda*f...cz we knew the freq and speed of wave is 330

Wasn't the speed of wave 3x10^8 ms^-1 (as it was a radio wave so belongs to electromagnetic spectrum)?

 

[marz_katy]

I used v=lambda x freq of carrier wave.



Wasn't the speed of wave 3x10^8 ms^-1 (as it was a radio wave so belongs to electromagnetic spectrum)?

this is sound wave my dear....wat u saying is for light and electromagnetic waves

 

[Hadaya]

Bu

this is sound wave my dear....wat u saying is for light and electromagnetic waves[/quote
But I guess both methods could be used