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The earth's magnetic field is...

The earth's magnetic field is

A

`10^(-4)T`

B

`10^(-5)T`

C

`10^(-6)T`

D

None of these

Text Solution

Verified by Experts

It has been established that earth magnetic field is fairly uniform. The strength of this field at the surface of the earth is approximately `101^(-4)` tesla or 1 gauss.
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Knowledge Check

  • Assertion : Earth's magnetic field does not affect the working of a moving coil galvanometer. Reason: The earth's magnetic field is quite weak as compared to magnetic field produced in the moving coil galvanometer.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion.
    B
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    C
    If assertion is ture but reason is false.
    D
    If both assertion and reason are false.
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    A
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    B
    `2.05xx10^(23)Am^(2)`
    C
    `1.05xx10^(21)Am^(2)`
    D
    `2.05xx10^(21)Am^(2)`
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