A particle A of charge ` 1 mu C` is held fixed at a point P in free space . Another particle B of same charge and mass `4 mu g` is kept at a distance of1mm from P .If B is released then its velocity at a distance of 9 mm from P is (Take `(1)/( 4pi epsilon_(0)) =9 xx 10^(9)Nm^(2) C^(-2))`

The electric field due to a charge at a distance of 3 m from it is 500 NC^(-1) . The magnitude of the charge is [(1)/(4 pi epsi_(0)) = 9 xx 10^(9) N - m^(2)//C^(2)]

The electric field due to a charge at a distance of 3 m from it is 500 NC^(-1) . The magnitude of the charge is [(1)/(4 pi epsi_(0)) = 9 xx 10^(9) N - m^(2)//C^(2)]

A hollow sphere of radius 0.1 m has a charge of 5 xx10^(-8) C . The potential at a distance of 5 cm from the centre of the sphere is (1/(4pi epsi_(0))=9xx10^(9) Nm^(2) C^(-2))

A hollow sphere of radius 0.1 m has a charge of 5 xx10^(-8) C . The potential at a distance of 5 cm from the centre of the sphere is (1/(4pi epsi_(0))=9xx10^(9) Nm^(2) C^(-2))

A particle of charge q is fixed at point P, and a second particle of mass m and the same charge q is initially held a distance r_1 from P. The second particle is then released. Determine its momentum magnitude when it is a distance r_2 from P. Let q=3.1 mu C. m= 20 mg, r_1 = 0.90 mm, and r_(2) = 1.5 mm.

Three particles, each having a charge of 10 mu C are placed at the coners of an equilateral triangle of side 10 cm . The electrostatic potential energy of the system is (Given (1)/(4pi epsilon_(0)) = 9 xx 10^(9)N-m^(2)//C^(2))

Three particles, each having a charge of 10 mu C are placed at the coners of an equilateral triangle of side 10 cm . The electrostatic potential energy of the system is (Given (1)/(4pi epsilon_(0)) = 9 xx 10^(9)N-m^(2)//C^(2))

Two charge particle P & Q having same charge 1muC and mass 4mukg are initially kept at the distance of 1mm . Charge P is fixed, then the velocity of charge parti Q when the separationbetween then becmoes 9mm .

Two charge particle P & Q having same charge 1muC and mass 4mukg are initially kept at the distance of 1mm . Charge P is fixed, then the velocity of charge parti Q when the separationbetween then becmoes 9mm .