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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
    If both assertion and reason are true and reason is not the correct explanation of assertion.
    C
    If assertion is ture but reason is false.
    D
    If both assertion and reason are false.

  • Assertion: The earth's magnetic field does not affect the working of a moving coil galvanometer. Reason: Earth's magnetic field is very weak.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion.
    C
    If assertion is true but reason is false.
    D
    If assertion and reason both are false.

  • In a certain place, the versted component of earth's magnetic field is 0.5 oersted and dip angle is 60^(@) . The earth's magnetic field at that place is

    A
    1 orested
    B
    ` sqrt(3)/2` orested
    C
    2 oerested
    D
    ` 1/(sprt(3))` oersted

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    A bar magnet is oscillating in the earth's magnetic field with a time period T . If the mass is quadrupled, then its time period will be:

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    A bar magnet is oscillating in the earth's magnetic field with a period T. What happens to its period and motion if its mass is quadrupled

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