Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
BITSAT2009PhysicsElectrostaticsActual

If an electron has an initial velocity in a direction different from that of an electric field, the path of the electron is

Options

  1. Aa straight line
  2. Ba circle
  3. Can ellipse
  4. Da parabola

Correct answer

D. a parabola

Step-by-step solution

The path is a parabola, because initial velocity can be resolved into two rectangular components, one along E and other to E . The former decreases at a constant rate and latter is unaffected. The resultant path is therefore a parabola.

Practice Electrostatics on Quantrex Academy →

More from Electrostatics

An oil drop of radius 1 ~m is held stationary under a constant electric field of 3.65 10^4 ~N / C due to some excess electrons presence on it. If the density of oil drop is 1.26 ~g 2024The potential of a large liquid drop when eight liquid drops are combined is 20 V , then the potential of each single drop was 2024A dust particle of mass 4 10⁻¹² mg in suspended in air under the influence of an electric field of 50 ~N / C directed vertically upwards. How many electrons were removed from the n 2024Electric field at point (30,30,0) due to a charge of 0.008 C placed at origin will be, (coordinates are in cm ) 2024If two charges q₁ and q₂ are separated with distance ' d ' and placed in a medium of dielectric constant K . What will be the equivalent distance between charges in air for the sam 2024Electric potential at a point 'P' due to a point charge of 5 10⁻⁹ C is 50 V . The distance of ' P ' from the point charge is: (Assume, 1 4 ₀ =9 10⁺⁹ Nm ^2 C ⁻² ) 2024Five charges +q,+5 q,-2 q,+3 q and -4 q are situated as shown in the figure, The electric flux due to this configuration through the surface S is : 2024In a cuboid of dimension 2 ~L 2 ~L L , a charge q is placed at the centre of the surface ' S ' having area of 4 ~L ^2 . The flux through the opposite surface to ' S ' is given by 2023 Full Electrostatics list All BITSAT PYQs