Two protons P and Q moving with the same speed enter magnetic fields `B_1` and `B_2` respectively at right angles to the field directions. If `B_2` is greater than `B_1`, for which of the protons P and Q,the circular path in the -magnetic will be a smaller radius?

Two protons P and Q moving with the same speed enter magnetic field B_(1)andB_(2) respectively at right angles to the field directions. If B_(2) is greater than B_(1) for which of the protons P and Q the circular path in the magnetic field will have a smaller radius?

A proton and alpha particle is projected with the same velocity within the magnetic field of intensity B. What is the ratio of their radius of curvature of path?

A beam of alpha particles and of the protons of the same velocity V, enter a uniform magnetic field at right angles to the field lines. The particles describe circular paths. What is the ratio of the radii of these two circles?

A circular wire of radius r and with a constant current I is placed in a magnetic field vecB such that the direction of B is perpendicular to the plane of the wire. The value of the magnetic force on the circular wire—

An electron moving at right angle with a uniform magnetic field revolves along a cirular path. To reduce the radius of that circular path to half, the magnetic field should be ______ [Fill in the blank]

A moving electron and a moving proton enter a uniform magnetic field in a direction perpendicular to that of the field. If the radii of their circular orbits are equal, they have the same

A proton with a speed of 2xx10^7 m.s-1 enters a magnetic field of flux density 1.5 Wb.m^-2 , making an angle of 30^@ with the field. The force acting on the proton is

The ratio of the masses and charges of a proton and an alpha particle are respectively 1:4 and 1:2 . They enter a uniform magnetic field of magnitude B normally with same momentum and What will be the ratio of the radii of the circular paths described by the particles in each case ?

The ratios of the masses and charges of a proton and an alpha particle are respectiely 1:4 and 1:2 . They enter a uniform magnetic field of magnitude B normally with same velocity. What will be the ratio of the radii of the circular paths described by the particles in each case ?