A point charge `q = 2C` is projected with velocity ` vec(v) = 2 hati + 3hatj` from point P. The magnetic force acting on the charge at this moment is

An electric charge q is moving with a velocity w in the direction of a magnetic field B. The magnetic force acting on the charge is

A charge q enters into a magnetic field (B) perpendicularly with velocity V. The time rate of work done by the magnetic force on the charge is

A charge q is moving with a velocity v_(1)=1hati m/s at a point in a magentic field and experiences a force F=q[-hatj+1hatk] N. If the charge is moving with a voloctiy v_(2)=2hatj m/s at the same point then it experiences a force F_(2)=q(1hati-1hatk) N. The magnetic induction B at that point is

A particle of mass m carrying charge q is projected with velocity v from point P toward aninfinite line of charge from a distance a . Its speed reduces to zero momentarily at point Q , which is at a distance a//2 from the line of charge. If another particle with mass m and charge -q is projected with the same velosity v from P toward the line of charge, what will be its speed at Q ?

The moment of the force F acting at a point P, about the point C is

A force vec(F) = (hati + 3 hatj) N acts on a body at a point P , which is at a distance , give by vec(r) = (3hati + hatj) m form the axis of rotation . What is the direction of the torque acting on the body ?

A charge particle of mass m and charge q is projected with velocity v along y-axis at t=0. Find the velocity vector and position vector of the particle vec v (t) and vec r (t) in relation with time.

A particle of charge q is projected from point P with velocity v as shown. Choose the correct statement from the following.