Magnetic field due to currentHard
Question
Two identical charged particles enter a uniform magnetic field with same speed but at angles 30o and 60o with field. Let a, b and c be the ratio of their time periods, radii and pitches of the helical paths than
Options
A.abc = 1
B.abc > 1
C.abc < 1
D.a = bc
Solution
a = 
b =
= tan 30o
c = vB × T =
= tan 60o
∴ bc = 1 = a ⇒ abc = 1
b =
c = vB × T =
∴ bc = 1 = a ⇒ abc = 1
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