Physics: Post your doubts here!

[DeViL gURl B)]

U me

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s10_qp_21.pdf

can sombody please do question 5 (b) (iii)

Thanks in advance

u mean b(ii) ?

 

[DeViL gURl B)]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s10_qp_21.pdf

can sombody please do question 5 (b) (iii)

Thanks in advance

Well that's the strength part.. The closer the field lines the stronger the strength..
So that gotta be on the top.. Where they r close..
And constant is when the have equal distance btw them as in equal.. Strength

 

[umair1161]

Well that's the strength part.. The closer the field lines the stronger the strength..
So that gotta be on the top.. Where they r close..
And constant is when the have equal distance btw them as in equal.. Strength

thanks alot for an answer

But can you please elaborate on how to find the decreasing field strength part?

Thanks again

 

[Iridescent]

thanks alot for an answer

But can you please elaborate on how to find the decreasing field strength part?

Thanks again

It is on the top, where the spacing between the field lines is greater.

 

[umair1161]

It is on the top, where the spacing between the field lines is greater.

So can it also be on the bottom where the spacing is also greater??

Thank you

 

[Iridescent]

So can it also be on the bottom where the spacing is also greater??

Thank you

Yes, it can be either top or bottom.

No problem.

 

[DeViL gURl B)]

thanks alot for an answer

But can you please elaborate on how to find the decreasing field strength part?

Thanks again

U're welcome
Now got it?

 

[UXm@N]

Suggest why a thin rod can bend more than a thick rod without breaking.
Explanation required.Thanks in advance.

 

[Suchal Riaz]

Why doesnt the power generated equal to I2R where R=.1+.5+3.4??

because not all of power is used up in resistors. when you are finding power of an e.m.f source it means "rate of how much electric energy is converted from other sources of energy" so there is nothing to do with resistors.
but when you are finding power of a resistor it means "rate of how much work is done by the resistor/ or how much electric energy is converted into other forms of energy"
in some cases it can give correct answer by using total R. in that case power generated by the e.m.f source=power used up by the circuits.
i must give you alot of example to make sure the concepts are cleared. maybe this one example will do the job for now

in this case the power in A = power dissipated by R

 

[Talha Irfan]

When will we need to describe this?

It is mentioned out there in the 2014 Physics AS Syllabus under the section 3(i)

 

[Lightning soul]

Yes, it can be either top or bottom.

No problem.

But that's just showing lower field strength. They're asking for a decreasing field strength. Wouldn't between the charged sphere and the plate make more sense as the sphere has the greater strength and the plate has the smaller strength so the center should show the strength decreasing?

 

[DeViL gURl B)]

Guys..
The conditions for the *young double slit experiment * and for the *interference pattern * are the same right.. Confused :$

And these are the conditions ..
-> monochromatic light
-> coherent sources
-> same frequency and amplitude
-> plane of polarization should be the same


Please add more .. If required and correct if any wrong
Thank u

Any one .. Please??

 

[Iridescent]

But that's just showing lower field strength. They're asking for a decreasing field strength. Wouldn't between the charged sphere and the plate make more sense as the sphere has the greater strength and the plate has the smaller strength so the center should show the strength decreasing?

But according to the b(ii) 1, center is the region showing constant field strength.
And when we are marking top or bottom, we show it towards the plane, right? So that covers both the lower and the decreasing part.

 

[umair1161]

Yes, it can be either top or bottom.

No problem.

Thanks a lot!

 

[umair1161]

U're welcome
Now got it?

Yeps!

Thanks alot!

 

[DeViL gURl B)]

Yeps!

Thanks alot!

No problem

 

[Iridescent]

Any one .. Please??

Young's double slit experiment shows interference. Therefore, the conditions are same.

 

[lescynicist]

people, please i need full electricity notes for AS. Help me out.

 

[lescynicist]

excellent AS waves notes for anybody who needs them.

 

[ZaqZainab]

people, please i need full electricity notes for AS. Help me out.

this is all i have