A chamber is maintained at a uniform magnetic field of \( 5 \times 10^{-3} \mathrm{~T} \). An el...

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A chamber is maintained at a uniform magnetic field of \( 5 \times 10^{-3} \mathrm{~T} \). An electron with a speed of \( 5 \times 10^{7} \mathrm{~ms}^{-1} \) enters the chamber in a direction normal to the field. Calculate
frequency of revolution of the electron.
Charge of electron \( =1.6 \times 10^{-19} \mathrm{C} \),
Mass of electron \( =9 \cdot 1 \times 10^{-31} \mathrm{~kg} \)
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