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A hollow charged conductor has a tiny hole cut into its surface. Show that the electric field in the hole is (

/2

_o)n^, where n^ is the unt vector in the outward normal diretion and

is the surface charge density near the hole.

NCERT Text book Chapter1 Q No. 1.29

Please do rely me quickly

Yes of course the distance between the plates is going to be less than by h but the area of the plates is going to be the same, the rest is going to be same
So capacitance will be (epsilon not*Area/(d-h))
Please correct me if i'm wrong.

yes that's the problem thanks i was very much confused why i'm getting the wrong answer inspite of my so much effort. Thanks a lot

harsha, ur answer is correct, i tried my best and got the same answer but in NCERT TextBook Qno. (1.18) the answer has been given 2.2*10^5 Nm^2/C

A Point charge +10 microC is at a distance 5 cm directly above the centre of a square of side 10 cm. What is the magnitude of the electric flux through the square

Ans: 2.2 X 10^5 N m^2/C

Q from NCERT Physics I chapter 1 Question no 1.18

My answer is 1.13 X 10^5

Please help me out

A Point charge +10 microC is at a distance 5 cm directly above the centre of a square of side 10 cm. What is the magnitude of the electric flux through the square

Ans: 2.2 X 10^5 N m^2/C

Q from NCERT Physics I chapter 1 Question no 1.18

My answer is 1.13 X 10^5

please anyone refer the link for VITEEE(vellore Inst. of tech.) Question Paper or Sample Paper

A rod of length L, cross sectional Area A and density

' is hanging from a rigid support by pring of stiffness k. A small sphere of mass m is rigidly attached at the bottom of the rod. The rod is partially immersed in a liquid of density

. Find time period of small oscillations.

Ans. 2

(m+L

'A)/(k+A

g)

Remember when gravitation is considered no air resistance or friction due to the air is considered whether u make fall a coin or an elephant from the same height, they r going to reach the ground in the same time theoretically. However it does not happen in reality. It is the air drag that makes the difference.

In the case of projectile all the cases are considered without air friction only. That's why all the exprssion for time period, range come out to be without any term of MASS.

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Yeaah that's a good book for a beginner.
If u r presently in class XII and u belive that ur chemistry has been prepared just u can use this book for quick revision

Rate me if u liked my suggestion.

When does current stop flowing in capacitor. how steady state is reached?

I'm just unable to understand how to start over the conversion,which reagent to use ?

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