An electron of mass ' m ' and charge ' q ' is accelerated from rest in a uniform electric field of strength ' E'. The velocity acquired by it as it travels a distance ' l ' is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Mass of electron 
, charge 
Electric field 
(Uniform)
Electric force, 
Acceleration, 
Also, 
?
Using kinematics eqn, 
This is the required speed of electron.
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
The electric flux linked with the closed surface in is
Identify the WRONG statement in the case of electric field lines.
An electron of mass ' m e ' and a proton of mass ' m', are kept in a uniform electric field. The ra…
If E a and E q represent the electric field intensity due to a short dipole at a point on its axial…
Two concentric spheres kept in air have radii R and r. They have similar charge and equal surface c…
In air, a charged soap bubble of radius r is in equilibrium having outside and inside pressures bei…