Home
Class 12
PHYSICS
The magnetic of poynting vector and elec...

The magnetic of poynting vector and electric field vector are respectively `S` and `E`, then

A

`S=E^(2)sqrt((epsilon_(0))/(mu_(0)))`

B

`S=E^(2)sqrt((epsilon_(0)mu_(0)))`

C

`S=E^(2)sqrt(mu_(0)/(epsilon_(0)))`

D

`S^(2)=(E^(2))/(mu_(0))`

Text Solution

Verified by Experts

The correct Answer is:
A
`S=Uxxc`
Promotional Banner

Topper's Solved these Questions

  • ELECTRO MAGNETIC WAVES

    NARAYNA|Exercise LEVEL- II (C.W.)|15 Videos

  • ELECTRO MAGNETIC WAVES

    NARAYNA|Exercise LEVEL- III|10 Videos

  • ELECTRO MAGNETIC WAVES

    NARAYNA|Exercise C.U.Q|31 Videos

  • ELECTRO MAGNETIC INDUCTION

    NARAYNA|Exercise Level-II (H.W)|23 Videos

  • ELECTROMAGNETIC INDUCTION

    NARAYNA|Exercise ASSERTION & REASON|6 Videos

Similar Questions

Explore conceptually related problems

The direction of poynting vector represents

Write down the Electric field in vector form ?

In an electromagnetic wave the electric field vector and magnetic field vector are given as vecE=E_(0)hati and vecB=B_(0)hatk respectively. The direction of propagation of electromagnetic wave is along:

Is magnetic field a scalar or a vector?

The electric field and the electric potential at a point are E and V respectively.

Electric flux in an electric field vecE through area vector vec(ds) is given by

In electromagnetic wave, if vecE,vecB and vecv are the electric field vector, magnetic field vector and velocity vector of electromagnetic wave, then

Unpolarised light consists of electric field vectors in

Let vecE , vecB and vecC represent the electric field, magnetic field and velocity of an electromagnetic wave respectively. Their directions, at any instant point along the unit vectors given below in order. Which of the following cannot be true?

NARAYNA-ELECTRO MAGNETIC WAVES-LEVEL -I(C.W.)
  1. A parallel plate capacitor of plate separation 2 mm is connected in an...

    Text Solution

    |

  2. The magnetic field between the plates of a capacitor when r gt R is gi...

    Text Solution

    |

  3. A condenser is charged using a constant current. The ratio of the magn...

    Text Solution

    |

  4. The magnetic field between the circulate plates of radius 12cm separte...

    Text Solution

    |

  5. The wave function (in S.I unit) for an electromagnetic wave is given a...

    Text Solution

    |

  6. The velocity of all radiowaves in free space is 3xx10^(8),//s, the fre...

    Text Solution

    |

  7. The relative permeability of glass is 3//8 and the dielectric constant...

    Text Solution

    |

  8. An electromagnetic wave of frequency v=3.0 MHz passes from vacuum into...

    Text Solution

    |

  9. In a plane electromagnetic wave, the electric field oscillates sinusoi...

    Text Solution

    |

  10. In a plane electromagnetic wave, the electric field oscillates sinusoi...

    Text Solution

    |

  11. In an apparatus the electric field was found to oscillate with an ampl...

    Text Solution

    |

  12. The amplitude of the sinusodially oscillating electric field of a plan...

    Text Solution

    |

  13. Light with energy flux of 18W//cm^(2) falls on a non reflecting surfac...

    Text Solution

    |

  14. Light with energy flux of 24Wm^(-2) is incident on a well polished dis...

    Text Solution

    |

  15. The maximum electric field of a plane electromagnetic wave is 88V//m. ...

    Text Solution

    |

  16. The rms value of electric field of a plane electromagnetic wave is 314...

    Text Solution

    |

  17. The magnetic of poynting vector and electric field vector are respecti...

    Text Solution

    |

  18. If the source of power 4 kW product10^(20) photons //second , the radi...

    Text Solution

    |

  19. The intensity of electromagnetic wave at a distance of 1 Km from a sou...

    Text Solution

    |

  20. The sun delivers 10^3W//m^2 of electromagnetic flux to the earth's sur...

    Text Solution

    |