Three conducting concentric spherical shells of radii R, 2R and 3R carry some charge on them. The potential at the centre is 50 V and that of middle and outer shell is 20 V and 10 V respectively. Find the potential of the inner Shell.
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Two concentric spherical shells have radii a and `b (gt a)`. Write the capacitance of the system in following cases. (a) Positive terminal of the batt
Correct Answer - (a) `4 pi in_(0)((b^(2))/(b-a))` (b) `4 pi in_(0)a` (c) `4 pi in_(0)((ab)/(b-a))` (d) `4 pi in_(0) b`
2 Answers 2 views
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 point charge q has been placed at a distance x from the centre of a neutral solid conducting sphere of radius R(x gt R). Find the potential of the s
Correct Answer - `(1)/(4pi in_(0))(q)/(x)` for both cases
2 Answers 3 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
Two concentric spherical shells of conducting material and of radii a and b `(bgta)` are given charges `q_(1) " and " q_(2)`, respectively. Find the p
Correct Answer - `(i) (q_9)+q_(2))(/(4piepsi_(0)r), (ii) (1)/(4piepsi_(0))((q_(1))/(r)+(q_(2))/(b))(iii) (q_(1))/(4piepsi_90))((1)/(a)-(1)/(b))` (iv) they will acquire a common potential
2 Answers 1 views
Two concentric sphericl shells of radii a and b (bgt a ) are uniformamly changed and carry equal changes q. Find the electric firld at a distance r fr
Correct Answer - `(i)zwro (ii) (rho_(1))/(4(iepsi_(0)r)),(iii) (rho_(1)+rho_(2))/(2piepsi_(0)r)`
2 Answers 1 views
Calculate the capacitance of a sherial capacitor consisting of two concentric spherical conductros of radii a and b(bgta), when the outer one is charg
Correct Answer - `4piepsilon_(0)((epsilon_(r)-1)ab+b^(2))/(b-a)`
2 Answers 1 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 system consists of two thin concentric metal shells of radii a=5 cm and b=7 cm with charges `q_(1)=6muC` and `q_(2)9muC` What is the interaction ene
Correct Answer - `6097 J,14.4 J`
2 Answers 1 views
(a) Find the capacitance of spherical capacitor having concentric shells of radii a `a` and `b (bgta)`. The space between the shells is completely fil
Correct Answer - `C=4piepsilon_(0)k((ab)/(b-a))`; (b) ` (k abc)/(ka(b-c)+b(c-a))`
2 Answers 1 views