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Write the dimensions of E/B. Here, E is ...

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

Text Solution

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`:' qE=Bqvsintheta`
`:. [E/B]=[v]=[LT^-1]`
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Knowledge Check

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

    A
    `[MT^(-3)]`
    B
    `[M^(2)LT^(-5)A^(-2)]`
    C
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    D
    `[MLT^(-2)A^(-2)]`

  • Which of these statements correctly describes the orientation of the electric field (vec(E)) the magnetic field (vec(B)) and velocity of propagation (vec(v)) of an electromagnetic wave?

    A
    `vec(E)` is perpendicular to `vec(B),vec(v)` may have any orientation relative to `vec(E)`
    B
    `vec(E)` is perpendicular to `vec(B),vec(v)` may have any orientation perpendicular to `vec(E)`
    C
    `vec(E)` is parallel to `vec(B),vec(v)` is perpendicular to both `vec(E) and vec(B)`
    D
    Each of the three vectors is perpendicular to the other two.

  • In an electromagnetic wave, electric field E and magnetic field B are

    A
    Mutually perpendicular to each other
    B
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    C
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    D
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