Mass of charge "Q" is "m" and mass of charge "2Q" is "4m" .If both are released from rest,then what will be "K" .E.of "Q" at infinite separation

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 A and B have charge +q and +2q ; mass m and 2m respectively. Both the charges are released from rest when they are at a distance l_0 apart. Neglect gravity and also assume the only force acting on either charge is the electrostatic force due to each other. The speed of charge A at the instant separation between both charges is 2l_0

A charged particle of mass m and charge q is released from rest in an electric field of constant magnitude E . The kinetic energy of the particle after time t is

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.

The mass of an object P is double the mass of Q. If both move with the same velocity, then the ratio of K.E. of P to Q is

A charged particle of mass m and charge e is released from rest in an electric field of constant magnitude E. The kinetic energy of the particle after time t is E_k and the linear momentum is p. We have

Two point charges having charge +Q, –q and mass M, m respectively are separated by a distance L. They are released from rest in a uniform electric field E. The electric field is parallel to line joining both the charges and is directed from negative to positive charge. For the separation between particles to remain constant, the value of L is (K=(1)/(4piin_(0)))

A block 'A' of charge q1 is fixed and second block of mass m and charge q2 is allowed to free on the floor findout the range of q2 for which the particle is at rest.

A particle of charges Q and mass m travels through a potential difference V from rest. The final momentum of the particle is