Questions in Moving Charges and Magnetism

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A proton of energy 8 eV is moving in a circular path in a uniform magnetic field. The energy of an alpha particle moving in the same magnetic field and along the same path will be
An electron, a proton, a deuteron and an alpha particle, each having the same speed are in a region of constant magnetic field perpendicular to the direction of the velocities of the particles. The radius of the circular orbits of these particles are respectively $R_e$, $R_p$, $R_d$ and $R_\alpha$. It follows that
An electron moving with a uniform velocity along the positive x-direction enters a magnetic field directed along the positive y-direction. The force on the electron is directed along
An electron is projected along the axis of a circular conductor carrying some current. Electron will experience force
A very high magnetic field is applied to a stationary charge. Then the charge experiences
An electron (q = $1.6 \times 10^{–19}$ C) is moving at right angle to the uniform magnetic field $3.534 \times 10^{–5}$ T. The time taken by the electron to complete a circular orbit is
In case Hall effect for a strip having charge Q and area of cross-section A, the Lorentz force is
A charged particle of mass m and charge q travels on a circular path of radius r that is perpendicular to a magnetic field B. The time taken by the particle to complete one revolution is
A very long straight wire carries a current $I$. At the instant when a charge $ + Q$ at point $P$ has velocity $\overrightarrow V $, as shown, the force on the charge is Question Image
The electron in the beam of a television tube move horizontally from south to north. The vertical component of the earth's magnetic field points down. The electron is deflected towards

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