Home
Class 12
PHYSICS
The dimensions of the quantity vecE xx v...

The dimensions of the quantity `vecE xx vecB`, where `vecE` represents the electric field and `vecB` the magnetic field may be given as :-

Text Solution

Verified by Experts

The correct Answer is:
B
IF Y is fixed i.e. another force is exist on Y additional to the mutual interaction between X & Y. So the net force on system (X & Y) is not zero p is charged but total always remain conserved.
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

Write the dimensions of E/B . Here, E is the electric field and B the magnetic field.

Dimensions of magnetic field intensity is

(a) Write the expression for the force, vecF , acting on a charged particle of charge 'q', moving with a velocity vecV in the presence of both electric field vecE and magnetic field vecB . Obtain the condition under which the particle moves undeflected through the fields. (b) A rectangular loop of size lxxb carrying a steady current I is placed in a uniform magnetic field vecB . Prove that the torque vectau acting on the loop is given by vectau=vecmxxvecB," where "vecm is the magnetic moment of the loop.

If a chraged particle at rest experiences no electromagnetic force, (i) the electric field must be zero (ii) the magnetic field must be zero (iii) the electric field may or may not be zero (iv) the magnetic field may or may not be zero

A particle having mass m and charge q is released from the origin in a region in which electric field and magnetic field are given by vecB =- B_0vecJ and vecE - E_0 vecK. Find the speed of the particle as a function of its z-coordinate.

The magnetic force vecF on a current carrying conductor of length I in an external magnetic field vecB is given by

Suppose we want to verify the analogy between electrostatic and magnetostatic by an explicit experiment. Consider the motion of (i) electric dipole vecp in an electrostatic field vecE and (ii) magnetic dipole vecM in a magnetic field vecB . Write down a set of conditions on vecE , vecB , vecp , vecM so that the two motions are verified to be identical. (Assume identical initial conditions).

A particle having charge q moves with a velocity v through a region in which both an electric field vecE and a magnetic field B are present. The force on the particle is

Show that the avearge energy density of the electric field vecE equals the average energy density of the magnetic field vecB , in electromagnetic waves.

If an electron is moving with velocity v produces a magnetic field vecB , then

ALLEN-BASIC MATHS-Exercise-02
  1. Dimensional formula of DeltaQ, heat supplied to the system is:

    Text Solution

    |

  2. Dimensions of 1(mu(0)epsilon(0)) where symbols have their usual meanin...

    Text Solution

    |

  3. The dimensions of the quantity vecE xx vecB, where vecE represents the...

    Text Solution

    |

  4. Write the dimensional formula of angular momentum. Is it scalar or vec...

    Text Solution

    |

  5. The Bernoulli's equation is given by p+(1)/(2)rhov^(2)+hrhog=k. Where ...

    Text Solution

    |

  6. When a wave travells in a medium, the displacement of a particle locat...

    Text Solution

    |

  7. Which of the following sysmte of units is not based on unit of mass, l...

    Text Solution

    |

  8. Which of the following is unitless quantity?

    Text Solution

    |

  9. The dimensional formula of wave number is

    Text Solution

    |

  10. The method of dimensional analysis can be used to derive which of the ...

    Text Solution

    |

  11. Which of the following does not have dimensions of force?

    Text Solution

    |

  12. Which of the following is incorrect statement

    Text Solution

    |

  13. A dimensionless quantity

    Text Solution

    |

  14. A unitless quantity

    Text Solution

    |

  15. Which of the following is incorrect statement

    Text Solution

    |

  16. A pair of physical quantities having same dimensional formula is

    Text Solution

    |

  17. The fundamental unit which has same power in the dimenssional formula ...

    Text Solution

    |

  18. The ratio of one micron to one nanometre is

    Text Solution

    |

  19. The equation of a wave is given by Y = A sin omega ((x)/(v) - k), wher...

    Text Solution

    |

  20. Temperature can be expressed as a derived quantity in terms of any of ...

    Text Solution

    |