Moving Charges and Magnetism

Related Questions

• 20 ampere current is flowing in a long straight wire. The intensity of magnetic field at a distance 10 cm from the wire will be

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• 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

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• The earth's magnetic induction at a certain point is $7 \times {10^{ - 5}}Wb/{m^2}.$ This is to be annulled by the magnetic induction at the centre of a circular conducting loop of radius $5 cm$. The required current in the loop is

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• Maximum kinetic energy of the positive ion in the cyclotron is

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• Magnetic field due to a ring having n turns at a distance x on its axis is proportional to (if r = radius of ring)

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