Questions in Moving Charges and Magnetism

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An electron enters a region where electrostatic field is 20N/C and magnetic field is 5T. If electron passes undeflected through the region, then velocity of electron will be
A charged particle is released from rest in a region of steady uniform electric and magnetic fields which are parallel to each other the particle will move in a
A particle of mass M and charge Q moving with velocity $\mathop v\limits^ \to $describes a circular path of radius R when subjected to a uniform transverse magnetic field of induction B. The work done by the field when the particle completes one full circle is
A particle of charge $ - 16 \times {10^{ - 18}}$coulomb moving with velocity $10\,\,m{s^{ - 1}}$ along the x-axis enters a region where a magnetic field of induction B is along the y-axis, and an electric field of magnitude ${10^4}\,\,V/m$is along the negative z-axis. If the charged particle continues moving along the x-axis, the magnitude of B is
Two ions having masses in the ratio $1 : 1$ and charges $1 : 2$ are projected into uniform magnetic field perpendicular to the field with speeds in the ratio $2 : 3$. The ratio of the radii of circular paths along which the two particles move is
An electron is travelling along the x-direction. It encounters a magnetic field in the y-direction. Its subsequent motion will be
An electron and a proton have equal kinetic energies. They enter in a magnetic field perpendicularly, Then
Electrons move at right angles to a magnetic field of $1.5 \times {10^{ - 2}}$Tesla with a speed of $6 \times {10^7}m/s.$If the specific charge of the electron is $1.7 \times {10^{11}}$ C/kg. The radius of the circular path will be
The cyclotron frequency of an electron grating in a magnetic field of 1 T is approximately
In the given figure, the electron enters into the magnetic field. It deflects in ...... direction Question Image

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