An electron of mass $9 \times 10^{-31} \mathrm{~kg}$ and charge $1.6 \times 10^{-19} \mathrm{C}$ moving with…

An electron of mass $9 \times 10^{-31} \mathrm{~kg}$ and charge $1.6 \times 10^{-19} \mathrm{C}$ moving with a velocity of $10^6 \mathrm{~ms}^{-1}$ entered a magnetic field normally and described a circle of radius $10 \mathrm{~cm}$. Then the intensity of the magnetic field is
  1. $5.625 \times 10^{-5} \mathrm{~T}$
  2. $1.414 \times 10^{-5} \mathrm{~T}$
  3. $1.833 \times 10^{-5} \mathrm{~T}$
  4. $4.667 \times 10^{-5} \mathrm{~T}$

Solution

No solution. Refer to answer key.

Asked in: AP EAMCET 2017 (25 Apr Shift 1)

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