Biology; Chemistry; Physics: Post your doubts here!

[exploded diper]

1) Cold air sinks to bottom as it has high density, Hot air rises to top as it has low density causing convection current.
2) Same current flows across each component. You need this for Simple Circuit Breaker. Batteries added in series voltage adds up.
3) Both
4) Yes
5) Point will move in middle of screen left and right as magnetic field changes.

but RENT BOTH INVERSELY RELATED SO HOW CAN one decide the brightness....i guess its voltage..

 

[funky brat]

There will be a break between the papers right?

Hmari supervisor bohat sarial then. 15 minute bad paper 2 shuru kara diya.

 

[funky brat]

No. This one

The arrowheads are North or south?

 

[exploded diper]

1) Cold air sinks to bottom as it has high density, Hot air rises to top as it has low density causing convection current.
2) Same current flows across each component. You need this for Simple Circuit Breaker. Batteries added in series voltage adds up.
3) Both
4) Yes
5) Point will move in middle of screen left and right as magnetic field changes.

but when time base is of......how can it deflect left and right...

 

[exploded diper]

Hmari supervisor bohat sarial then. 15 minute bad paper 2 shuru kara diya.

humay break bhi nahi mili.......

 

[Laibaaa]

There will be a break between the papers right?

There is a 15 minute or so break and we have to sit in the hall for that -.-

 

[FLRNAB]

Hmari supervisor bohat sarial then. 15 minute bad paper 2 shuru kara diya.

Bahr break krnay di ya andar hi?

 

[exploded diper]

The arrowheads are North or south?

they r the direction of the current...
but mostly its north.....

 

[funky brat]

but RENT BOTH INVERSELY RELATED SO HOW CAN one decide the brightness....i guess its voltage..

No, it's the amount of current flowing that controls.

 

[funky brat]

Bahr break krnay di ya andar hi?

Andar he.

 

[peacce]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_s13_qp_22.pdf Q.3 partb)i) pls? funky brat

 

[funky brat]

but when time base is of......how can it deflect left and right...

If it's ac and time base off it goes up and down only.

 

[exploded diper]

what is the answer to this question;(iv)
http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_s10_qp_22.pdf
for the whole question.........plx plx tell quickly....
Ram97 this one

 

[FLRNAB]

Andar he.

Supervision.
Last year to janay dy rahay thay.

but RENT BOTH INVERSELY RELATED SO HOW CAN one decide the brightness....i guess its voltage..

No, it's the amount of current flowing that controls.

The watts determine the brightness. Watt is the unit of Power. And Power is equal to Voltage x Amps (current). So both the current and voltage determine the brightness.

 

[Laibaaa]

So as stupid as it sounds, whats the relation between voltage and current ._.

 

[exploded diper]

No, it's the amount of current flowing that controls.

r u sure......cuz i have been doing it by voltage most of the time

 

[funky brat]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_s13_qp_22.pdf Q.3 partb)i) pls? funky brat

180N --> 30cm
800N--> x
x= 133

 

[funky brat]

r u sure......cuz i have been doing it by voltage most of the time

Brightness is controlled by current.

 

[exploded diper]

Supervision.



The watts determine the brightness. Watt is the unit of Power. And Power is equal to Voltage x Amps (current). So both the current and voltage determine the brightness.

i just saw tht on yahoo ans.....its for same resisitance i guess....
but still if its a potential devider or sumthing only one thing will effect....

 

[Enferno]

wth man question mei poocha between 1 and 3 hai aur distance 0 dena :\

Yeah, they have told us to find out from 1 s to 3. At 1s the ball is on 20cm mark and at 2s it is on 100. So speed is (100-20)/(1-3)