Home
Class 12
PHYSICS
If an electron has an initial velocity i...

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

A

a straight line

B

a circle

C

an cllipse

D

a parabola

Text Solution

Verified by Experts

The correct Answer is:
D
The path is a parabola, because initial velocity can be resolved into two rectangular components, one along `vec(E)` and other bot t o ` vec(E)` . The former decreases at a constant rate and latter is unaffected. The resultant path is therefore a parabola .
Promotional Banner

Topper's Solved these Questions

  • ELECTRIC CHARGES AND FIELDS

    DISHA PUBLICATION|Exercise Exercise - 2 : Concept applicator|24 Videos

  • ELECTRIC CHARGES AND FIELDS

    DISHA PUBLICATION|Exercise Exercise - 2 : Concept applicator|24 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    DISHA PUBLICATION|Exercise EXERCISE -2 : CONCEPT ALLPLICATOR|30 Videos

  • ELECTROMAGNETIC INDUCTION

    DISHA PUBLICATION|Exercise EXERCISE - 2 : Concept Applicator|29 Videos

Similar Questions

Explore conceptually related problems

In a uniform electric field if a charge is fired in a direction different from the line of electric field then the trajectory of the charge will be a

A particle moves in a plane with constant acceleration in a direction different from the initial velocity. The path of the particle will be

If an electron enters a magnetic field with its velocity pointing in the same direction as the magnetic field, then

A charged particle enters a magnetic field such that the direction of initial velocity are different from the direction of the field. Which of the following characteristics of the particle change with time ? (i) momentum (ii) K.E. (iii) acceleration (iv) direction of motion

In a certain region of space electric field E and magnetic field B are perpendicular ot each other and an electron enters region perpendicular to the direction of B and E both and moves undeflected, then velocity of electron is

DISHA PUBLICATION-ELECTRIC CHARGES AND FIELDS -Exercise - 1 Concept builder (Topicwise)
  1. Three charges + q , + 2 q and + 4 q are connected by strings as shown ...

    Text Solution

    |

  2. Force between two identical charges placed at a distance of r in vacu...

    Text Solution

    |

  3. If an electron has an initial velocity in a direction different from t...

    Text Solution

    |

  4. A charged oil drop is suspended in uniform field of 3 xx 10^(4) Vm^(-1...

    Text Solution

    |

  5. An electron and a proton are in uniform electic field. The ratio of th...

    Text Solution

    |

  6. Two large parallel plane sheets have uniform charge densities + sigma ...

    Text Solution

    |

  7. In a region with uniform electric field, the number of lines of force ...

    Text Solution

    |

  8. When a charge is moved against the Coulomb's force of an electric fiel...

    Text Solution

    |

  9. The electric field strength at a distance r from a charge q is E. Wha...

    Text Solution

    |

  10. The spatial distribution of electric field due to charges (A,B) is s...

    Text Solution

    |

  11. An oil drop of 12 excess electrons is held stationary under a constant...

    Text Solution

    |

  12. An electric dipole is kept in non-unifrom electric field. It experienc...

    Text Solution

    |

  13. Two point dipoles of dipole moment vec(p)(1) and vec(p)(2) are at a d...

    Text Solution

    |

  14. Three poistive charges of equal value q are placed at the vertices of ...

    Text Solution

    |

  15. Let P(r)=(Q)/(piR^4)r be the charge density distribution for a solid s...

    Text Solution

    |

  16. An electric line of forces in the x-y plane is given by the equation x...

    Text Solution

    |

  17. Three infinitely long charge sheets are placed as shown in figure . T...

    Text Solution

    |

  18. The electric intensity due to a dipole of length 10 cm and having a ch...

    Text Solution

    |

  19. An electric dipole consisting of two opposite charges of 2xx10^(-6)C e...

    Text Solution

    |

  20. Two parallel large thin metal sheets have equal surface charge densiti...

    Text Solution

    |