A sphere of radius 10 cm conecentrically surrounded by a thin spherical shell of radius of 11 cm A charge of `100muC` is imparted to the outer spheree and the inner one is earthed. Calculate the charge on the outer surface of the inner sphere and on the two surfaes of the outer sphere.
1 Answers
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A conducting sphere of radius R carries a charge Q. It is enclosed by another concentric spherical shell of radius 2R. Charge from the inner sphere is
Correct Answer - `-(Q^(2))/(16pi in_(0)R)`
2 Answers 1 views
A solid sphere of radius R has total charge Q. The charge is distributed in spherically symmetric manner in the sphere. The charge density is zero at
Correct Answer - (a). `rho(r)=(Q)/(piR^(4))r` (b) `(Qr_(1)^(2))/(4pi in_(0)R^(4))`
2 Answers 1 views
Consider a uniformly charged spherical shell of radius R having charge Q charge Q can be through to be made up of number of point charges `q_(1),q_(2)
Correct Answer - (a). `(Q^(2))/(8 pi in_(0)R)` (b). Same as in (a)
2 Answers 1 views
In a X-ray tube, after an electron has been removed from an inner shell of a target atom, an electron from outer shell falls into the vacancy and the
Correct Answer - `E_(k) - 2E_(L)`
2 Answers 1 views
A spherical silver electrode of radius 8cm is concentric with a spherical metal shell of radius 10cm. The inter space contains an insulating material
Correct Answer - `1.99 xx 10^(5)Omega`
2 Answers 3 views
A hollow spherical conductor of radius 10 m cm is surrounded concentrically by another bigger shell of radius 12 cm and thickness 1 cm The inner one i
Correct Answer - `(i)3510 (ii)3285 V,(iii)585 V`
2 Answers 2 views
A spherical shell of radius `R_(1)` with uniformly distributed charge q has a point charge `q_(0)` at its centre. Find the work performed by the elect
Correct Answer - `(q(q_(0)+q//2))/(4piepsilon_(0))((1)/(R_(1))-(1)/(R_(2)))`
2 Answers 1 views
A point charge Q is placed at the centre of an uncharged spherical shell of inner radius a and outer radius b. There is a small tunnel in the body of
Correct Answer - `(Q^(2))/(8piepsilon_(0))((1)/(a)-(1)/(b))`
2 Answers 1 views
Consider three identical metal spheres ` A, B` and `C`. Sphere `A` carries charge ` + 6q`, sphere `B` carries charge `-3q` and sphere `C` carries no c
Correct Answer - `2.25q`
2 Answers 4 views
A glass sphere with `10 cm` radius has a `5 cm` radius spherical hole at its centre. A narraow beam of parallel light is directed into the sphere. Whe
Correct Answer - 5 cm of the left of the surface of sphere
2 Answers 1 views