MagnetismEasy
Question
An electron (e/m) = 1.76 × 1011 coulomb/kg] enters a region where there is a uniform magnetic field of induction 1.78 × 10-3 T with a velocity 4 × 106 m/s in a direction 30° with the field. The pitch in cm of its helical path in the region is :-
Options
A.3.2 cm
B.4.0 cm
C.7.4 cm
D.6.0 cm
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