Moving Charges and Magnetism

Question: An electron (mass = $9 \times 10^{–31}$ kg. Charge = $1.6 \times 10^{–19}$ C) whose kinetic energy is $7.2 \times 10^{–18}$ joule is moving in a circular orbit in a magnetic field of $9 \times 10^{–5} weber/m^2$. The radius of the orbit is



1) 1.25 cm
2) 2.5 cm
3) 12.5 cm
4) 25.0 cm
Solution: Explanation: No Explanation
Motion of Charged Particle In Magnetic Field

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