A charged particle of mass 
and charge 
moving under the influence of uniform electric field 
and a uniform magnetic field 
follows a trajectory from point 
to 
as shown in figure. The velocities at 
and 
are respectively, 
and 
. Then which of the following statements ( 
) are the correct? (Trajectory shown is schematic and not to scale)
A
Magnitude of electric field 
B
Rate of work done at point 
is 
is C
Rate of work done by both fields at point 
is zero
is zero D
Change in angular momentum 
. origin is 
. origin is
Text Solution
Verified by ExpertsThe correct answer is:
A
JEE Main 2020
by work energy theorem
Rate of work done at 
power of electric force
at 
, 
for both forces
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
A circular coil of radius 10 cm is placed in a uniform magnetic field of 3.0 × × 10 -5 T with its p…
A loop of straight edges has six corner points , and . The magnetic field in this region is . …
A charged particle (mass and charge ) moves along -axis with velocity . When it passes through …
A beam of protons with speed enters a uniform magnetic field of at an angle of to the magnetic f…
The figure shows a region of length with a uniform magnetic field of in it and a proton entering …
A wire carrying current is bent in the shape as shown, where rectangle and are perpendicular to…