An electron (charge $q$ $C$) enters a magnetic field of $B$ $Wb/m^2$ with a velocity of $v$ $m/s$ in the same direction as that of the field. The force on the electron is:
- A$Bqv$ $N$ in the direction of the magnetic field
- B$Bqv$ dynes in the direction of the magnetic field
- C$Bqv$ $N$ at right angles to the direction of the magnetic field
- DZero
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