There is a uniform electric field of strength 103V/m along y−axis. A body of mass 1g and charge 10−6C is projected into the field from origin along the positive x−axis with a velocity 10m/s. Its speed in m/s after 10s is (neglect gravitation) :
5√2
10
10√2
20
A
10√2
B
5√2
C
10
D
20
Open in App
Solution
Verified by Toppr
Velocity in x direction remains constant i.e, vx=10m/s Now acceleration is only in y direction a=qEm
Was this answer helpful?
20
Similar Questions
Q1
There is a uniform electric field of strength 103V/m along y−axis. A body of mass 1g and charge 10−6C is projected into the field from origin along the positive x−axis with a velocity 10m/s. Its speed in m/s after 10s is (neglect gravitation) :
View Solution
Q2
There is a uniform electric field of strength 103 V/m along y-axis. A body of mass 1g and charge 10−6C is projected into the field from origin along the positive x-axis with a velocity 10m/s. Its speed in m/s after 10s is (Neglect gravitation)
View Solution
Q3
An electron moving along positive X-axis with a 3×106m/s speed, enters the region of a uniform electric field. The electron stops after travelling a distance of 90mm in the field. The electric field strength is (charge on electron =1.6×10−19, mass of electron=9.1×10−31kg) :
View Solution
Q4
A charged particle of specific charge 1000C/kg is projected from the origin of the x−y plane with velocity 2^im/s at t=0. The plane has uniform magnetic field of 289√19T and electric field of magnitude 10−3N/C along the positive x− axis. Find the position of particle at t=2s.
View Solution
Q5
A particle of charge −16×10−18 coulomb moving with velocity 10 m/s along the x-axis enters a region where a magnetic field of induction B is along the y-axis, and an electric field of magnitude 104V/m is along the negative z-axis. If the charged particle continues moving along the x-axis, the magnitude of B is