[" 6/60"],[" A particle of mass "m" and charge "q" is projected in a region where an "],[" electric field "E_(0)x" is exists,with initial velocity "v_(0)" ,from point "P(a,0)],[" where a is slightly greater than zero.The radius of curvature of the "],[" particle when its "x" -coordinate become "x_(0)" is (neglect gravity) "]

A charge particle of mass m and charge q is released from rest in uniform electric field. Its graph between velocity (v) and distance travelled (x) will be :

A particle of mass m and charge + q is projected from origin with velocity vec(V)=V_(0)hati in a magnetic field vec(B)=-(B_(0)x)hatk. Here V_(0) and B_(0) are positive constants of proper dimensions. Find the radius of curvature of the path of the particle when it reaches maximum positive x co-ordinate.

A particle of mass m and charge -q is projected from the origin with a horizontal speed v into an electric field of intensity E directed downward. Choose the wrong statement. Neglect gravity

A particle of charge q and mass m enters a region of a transverse electric field of E_(0)hatj with initial velocity v_(0)hati . The time taken for the change in the de Broglie wavelength of the charge from the initial value of lambda_(0) to lambda_(0)//3 is proportional to

A particle of mass m and charge q is thrown in the vertical direction with a velocity v_(0) in a uniform horizontal electric field E . Assuming the gravity force to be negligible ,the equation of the path followed by the particle will be

A particle of mass m and positive charge q is projected with a speed of v_0 in y–direction in the presence of electric and magnetic field are in x–direction. Find the instant of time at which the speed of particle becomes double the initial speed.

A charged particle of mass m and charge q is released from rest the position (x_0,0) in a uniform electric field E_0hatj . The angular momentum of the particle about origin.

A particle of mass m and charge q is projected into a region having a uniform magnetic field B0. Initial velocity (v0) of the particle is perpendicular to the magnetic field. Apart from the magnetic force the particle faces a frictional force which has a magnitude of f = kv where v is instanta- neous speed and k is a positive constant. (a) Find the radius of curvature of the path of the particle after it has travelled through a distance of x_(0)=(mv_(0))/(2K). (b) Plot the variation of radius of curvature of the path of the particle with time (t).

A charged particle of mass m and charge q, a uniform magneric field B acting into the plane. The plane is frictional having coefficient of friction mu . The speed of charged particle just before entering into the region is V_(0) . The radius of curvature of the path after the time (v_(0))/(2mug) is

A charge q of mass m enters a region of electric field E=-E_(0)hatj with a velocity v_(0)hati+v_(0)hatj at origin. Find the x coordinate where the charge hits the x axis again. (Neglect effect of gravity)