A particle of charge q and mass m is projected with a velocity V 0 towards a circular region having uniform magnetic field B perpendicular and into the plane of paper from point P as shown in the figure. R is the radius and O is the centre of the circular region. If the line OP makes angle θ with the direction of V 0 , then the value of V 0 so that particle passes through O is–
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
r = 
R = 2 r sin θ
⇒ R = 
sin θ
⇒ V 0 = 
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
Magnetic effect of current was discovered by
The direction of magnetic lines of forces close to a straight conductor carrying current will be
The ratio of the magnetic field at the centre of a current carrying coil of the radius a and at a d…
“On flowing current in a conducting wire the magnetic field produces around it.” It is a law of
A circular current carrying coil has a radius R. The distance from the center of the coil on the ax…
The field normal to the plane of a wire of n turns and radius r which carries a current i is measur…