There is a hemispherical shell having charge Q uniformly distributed on its surface. Radius of the shell is R. Find electric potential and field at the centre (of the sphere).
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A hemispherical shell is uniformly charge positively. The electric field at point on a diameter away from the center is directed
Correct Answer - A When the point is situated at a point on diameter away from the centre of hemisphere charged uniformly positively, the electric field is perpendicualr to the diameter....
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A uniformly charged sphere has radius R and charge Q on it. A negatively charged particle having mass m and charge – q shoots out of the surface of th
Correct Answer - Yes, `V_(0)` depends on q. `V_(0)=sqrt((2KQq)/(mR))`
2 Answers 1 views
Short electric dipole of dipole moment P is placed at the centre of a ring of radius R having charge Q uniformly distributed on its circumference. The
Correct Answer - `(PQ)/(4pi in_(0)R^(3))`
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Calculate the electric dipole moment of a system comprising of a charge + q distributed uniformly on a semicircular arc or radius R and a point charge
Correct Answer - `P=(2Rq)/(pi)`
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A ball of radius R has a uniformly distributed charge Q. The surrounding space of the ball is filled with a volume charge density `rho=(b)/(r)` , wher
Correct Answer - (a). `Q=2pibR^(2)` (b). `E=(b)/(2epsilon_(0))`
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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)
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A charge +Q is uniformly distributed over a thin ring of a radius R. Find the velocity of a negative point charge -Q at the moment it passes through t
Correct Answer - `v=sqrt(1/(4piepsi_0)(2Q^2)/(Rm)`
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)))`
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A uniformly charged sphere carries a total charge of `2 pi xx10^(-12)` C. Its radius is 5 cm and is placed in vacuum. Determine its surface charge den
Correct Answer - `2xx 10^(-10)Cm ^(2)`
2 Answers 1 views
A charge of 1500 `muC` is distributed uniformly over a very large sheet of surface area `300m^(2)`. Calculate the electric field at a distance of 25 c
Correct Answer - `5.6xx10^(5)NC^(-1)`
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