Home
Class 12
PHYSICS
A charge q moves region in a electric fi...

A charge q moves region in a electric field E and the magnetic field B both exist, then the force on its is

A

`q(vec(v) xx vec(B))`

B

`qvec(E) + q (vec(B) xx vec(v))`

C

`q vec(B) + q (vec(E) xx vec(v))`

D

`q vec(E) + q(vec(v) xx vec(B))`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • MOVING CHARGES AND MAGNETISM

    AAKASH INSTITUTE|Exercise Assignment (Section B) Objective Type Questions (One option is correct)|34 Videos

  • MOVING CHARGES AND MAGNETISM

    AAKASH INSTITUTE|Exercise Assignment Section C (Objective Type Questions (More than one option are correct)|14 Videos

  • MOVING CHARGES AND MAGNETISM

    AAKASH INSTITUTE|Exercise Try Yourself|27 Videos

  • MOVING CHARGE AND MAGNESIUM

    AAKASH INSTITUTE|Exercise SECTION D|16 Videos

  • NUCLEI

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION-D)|10 Videos

Similar Questions

Explore conceptually related problems

A charge q is moving in a magnetic field then the magnetic force does not depend upon

An electron beam with equivalent electric current I enters a region of crossed electric field and magnetic field B. Both the fields are uniform. It is found that the electron beam goes undeviated through the region of fields. After passing the field region, electrons hit a grounded target. How much force is exerted by the electron beam on urget? Assumem is the mass of electron and e its charge.

In a region where both non-zero uniform electric field and magnetic field coexist, the path of a charged particle

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

Assertion (A),If electrons travel undefeccted by the electric field E and magnetic field B then the velocity of electrons is given by V=e/b . Reason (R ) : When both electric and magnetic field are applied simultaneously on electron beam. If force due to electric field is equal and opposite to force due to magnetic field then they travel undeflected.

A charged particle of charge e and mass m is moving in an electric field vecE and magnetic field vecB . Constant dimensionless quantities and quantities of dimention [T]^-1 .

A particle of charge q and mass m is moving along the x-axis with a velocity v and enters a region of electric field E and magnetic field B as shown in figures below. For which figure the net force on the charge may be zero?

A charge particle travels along a straight line with a speed v in region where both electric field E and magnetic field b are present.It follows that

Write the expression for the force vecF , acting on a charged particle of charge q moving with a velocity vecv in the pressure of both electric field vecE and magnetic field vecB . Obtain the condition under which the particle moves undeflected through the fields.

AAKASH INSTITUTE-MOVING CHARGES AND MAGNETISM-Assignment (Section A) Objective Type Questions (One option is correct)
  1. A charged particle is at rest in the region where magnetic field and e...

    Text Solution

    |

  2. An electron and a proton have equal kinetic energies. They enter in a ...

    Text Solution

    |

  3. A charge q moves region in a electric field E and the magnetic field B...

    Text Solution

    |

  4. Which particle will have minimum frequency of revolution when projecte...

    Text Solution

    |

  5. Mixed He^(+) and O^(2+) ions (mass of He^(+)=4 amu and that of O^(2+)=...

    Text Solution

    |

  6. When a charged particle enters a uniform magnetic field its kinetic en...

    Text Solution

    |

  7. There is a magnetic field acting in a plane perpendicular to this shee...

    Text Solution

    |

  8. A beam of protons is moving horizontally towards you. As it approaches...

    Text Solution

    |

  9. If a positively charged particle is moving as shown in the figure, the...

    Text Solution

    |

  10. A charged particle, having charge q(1) accelerated through a potential...

    Text Solution

    |

  11. Doubly ionized oxygen atoms (O^(2-)) and singly-ionized lithium atoms ...

    Text Solution

    |

  12. Two long conductors, separated by a distance d carry current I(1) and ...

    Text Solution

    |

  13. When two wires have current in same direction then force is

    Text Solution

    |

  14. A rectangular loop carrying a current i(2) situated near a long straig...

    Text Solution

    |

  15. Two parallel conductors A and B of equal lengths carry currents I and ...

    Text Solution

    |

  16. A and B are two conductors carrying a current i in the same direction ...

    Text Solution

    |

  17. Two long parallel copper wires carry current of 5A each in opposite di...

    Text Solution

    |

  18. A, B and C are parallel conductors of equal length carrying currents I...

    Text Solution

    |

  19. A conducting circular loop of radiius r carries a constant current i. ...

    Text Solution

    |

  20. A conductor PQ, carrying a current i is placed perpendicular to a long...

    Text Solution

    |