A uniformly charged (linear charge density a) very long wire in placed fixed. A negative charge particle - of mass m revolves around this wire in a circular path of radius then +++++++ m

A positive charge 'Q' is fixed at a point A negatively charged particle of mass ' 'm' and charge 'q' is revolving in a circular path of radius r_(1) ,with Q' as the centre.The change in potential energy to change the radius of the circular path from r_(1) to r_(2) in joule is

When a charged particle of charge a revolves in a circular orbit of radius r with frequency n, then orbital current will be

A uniformly charged sphere of charge Q and radius R is placed at some height from ground surface and sphere is fixed. Now a charged particle of mass m and charge q is released form rest just below to sphere what will be speed of particle after travelling Y-direction

Two positive point charges each of magnitude 10 C are fixed at positions A & B at a seperation 2d= 6m . A negatively charged particle of mass m= 90gm and charge of magnitude 10xx10^(-6)C is revolving in a circular path of radius 4m in the plane perpendicular to the line AB and bisecting the line AB . Neglect the effect of gravity. Find the angular velocity of the particle

An infinte wire having linear charge density lambda is arranged as shown in fig. A charge particle of mass m and charge q is released charged q is released from point P. Find the initial acceleration of the particle just after the particle is released.

A positive point charge +Q is fixed in space .A negative point charge -q of mass m revolves around a fixed charge in elliptical orbits .The fixed charge +Q is at one focus of the ellipse.The only force acting on negative charge is the electrostatic force due to positive charge is the electrostatic force due ot positive charge.Then which of the following statement is true

A particle of charge q_(1) and mass m is revolving around a fixed negative charge of magnitude q_(2) in a circular path of radius r. Find the time period of revolution.

Charged particle of charge q mass m moves in a circular path of radius r under the action of force F .The equivalent current is

Charged particle of charge q mass m moves in a circular path of radius r under the action of force F .The equivalent current is