Magnetics 1 Question 11
11. A particle of mass and charge moves with a constant velocity along the positive -direction. It enters a region containing a uniform magnetic field directed along the negative -direction, extending from to . The minimum value of required so that the particle can just enter the region is
(a)
(b)
(c)
(d)
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Answer:
Correct Answer: 11. (b)
Solution:
- If
(
The particle cannot enter the region
So, to enter in the region