Moving Charges ...

An electron of mass m and charge q is travelling with a speed v along a circular path of radius r at right angles to a uniform of magnetic field B. If speed of the electron is doubled and the magnetic field is halved, then resulting path would have a radius of

A uniform electric field and a uniform magnetic field exist in a region in the same direction. An electron is projected with a velocity in the same direction. Then the electron will

A particle of mass m and charge q enters a magnetic field B perpendicularly with a velocity v. The radius of the circular path described by it will be

The radius of circular path of an electron when subjected to a perpendicular magnetic field is

A particle of mass 0.6 g and having charge of 25 nC is moving horizontally with a uniform velocity 1.2 × 10⁴ ms^–1 in a uniform magnetic field, then the value of the magnetic induction is (g = 10 ms^–2)

An α particle and a proton travel with same velocity in a magnetic field perpendicular to the direction of their velocities. Find the ratio of the radii of their circular path

An electron (mass = 9 × 10^–31 kg, charge = 1.6 × 10^–19 C) whose kinetic energy is 7.2 × 10^–18 joule is moving in a circular orbit in a magnetic field of 9 × 10^–5 weber/m². The radius of the orbit is

An electron enters a region where electrostatic field is 20 N/C and magnetic field is 5 T. If electron passes undeflected through the region, then velocity of electron will be

In the given figure, the electron enters into the magnetic field. It deflects in ……. direction