A particle of mass ' m ' and charge ' q ' is fastened to one end ' A ' of a massless string having equilibrium length l, whose other end is fixed at point ' O '. The whole system is placed on a frictionless horizontal plane and is initially at rest. If uniform electric field is switched on along the direction as shown in figure, then the speed of the particle when it crosses the x -axis is
E→ 
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
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
Two small spherical balls of mass 10 g each with charges and , are attached to two ends of very l…
Two infinite identical charged sheets and a charged spherical body of charge density ' ρ ' are arra…
A metallic ring is uniformly charged as shown in figure. AC and BD are two mutually perpendicular d…
The electric field in a region is given by . The flux of the field through a rectangular surface p…
The electrostatic potential on the surface of uniformly charged spherical shell of radius is 120 V…
A dipole with two electric charges of magnitude each, with separation distance 0.5 , is placed be…