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 cm.
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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 nonconducting sheet of large surface area and thickness d contains uniform charge distribution of density `rho`. Find the electric field at a point
Correct Answer - `2:1`
2 Answers 1 views
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 th
Correct Answer - `E=(q)/(8pi in_(0)R^(2));(q)/(4pi in_(0)R)`
2 Answers 1 views
A proton beam has a circular cross sectional area A and it carries a current I distributed uniformly over its cross section. Calculate the magnetic en
Correct Answer - `(mu_(0)I^(2))/(16pi)`
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An infinite sheet in xy plane has a uniform surface charge density `sigma`. The thickness of the sheet is infinitesimally small. The sheet begins to m
Correct Answer - (1) `E=sigma/(2in_(0))` perpendiculary away from the sheet `B=(mu_(0)sigmav)/2` parallel to the sheet in `-ve` and `+ve` y direction (2) E= same as in (1);`B=0`
2 Answers 2 views
A ring of dielectric material, with a total charge +q distributed uniformly over its surface, rotates with angular speed `omega.` Find the magnetic mo
Correct Answer - `(1)/(2)qwr^(2),)(q)/(2m)`
2 Answers 1 views
A this disc of dielectric material, with a total charge +q distributed uniformly over its surface, rotates with angular speed `omega` about an axis pe
Correct Answer - `(1)/(4)qwr^(2),(q)/(2m)`
2 Answers 1 views
A thin disc of dielectric material, with a total charge +q distributed uniformly over its surface rotates n times per second about an axis perpendicua
Correct Answer - `(mu_(0)nq)/(r )`
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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)`
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Two identical charges, `5 muC` each are fixed at a distance 8 cm and a charged particle of mass `9 xx 10^(-6) kg` and charge `-10 muC` is placed at a
Correct Answer - `[10^(3) m//s]`
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