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In an electromanetic wave, the average e...

In an electromanetic wave, the average energy density associated with electric field is

A

`CV^(2)//2`

B

`Q^(2)//2C`

C

`epsi_(0)^(2)//2E_(0)`

D

`epsi_(0)E^(2)//2`

Text Solution

Verified by Experts

The correct Answer is:
D
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Knowledge Check

  • In an electromagnetic wave, the average energy density associated with magnetic field is:

    A
    `Li_(0)^(2)//2`
    B
    `B^(2)//2mu_(0)`
    C
    `mu_(0)B^(2)//2`
    D
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    A
    electric field only
    B
    magnetic field only
    C
    equally with electric and magnetic fields.
    D
    average energy density is zero.
  • The rms value of electric field of a plane electromagnetic wave is 314V//m .The average energy density of electric field and the average energy density are

    A
    `4.3xx10^(-7) Jm^(-3)`, `2.15xx10^(-7) Jm^(-3)`
    B
    `4.3xx10^(-7) Jm^(-3)`, `8.6xx10^(-7) Jm^(-3)`
    C
    `2.15xx10^(-7) Jm^(-3)`, `4.3xx10^(-7) Jm^(-3)`
    D
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