Assertion (A) : In deflection magnetometer a short magnetic needle is arranged in the compass box
Reason (R) : The magnetic needle is found in the uniform magnetic field produced by earth and bar magnet

Both A and R are true and R is the correct explanation of A

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Both A and R are true and R is not correct explanation of A

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A is true, But R is false

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A is false, But R is true

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Solution

The correct option is A Both A and R are true and R is the correct explanation of A
In Deflection magnetometer ,the bar magnet is kept at a distance from the magnetic needle and the deflection thus observed is due to the earth's and bar magnet's magnetic field..

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Assertion (A) : In deflection magnetometer a short magnetic needle is arranged in the compass boxReason (R) : The magnetic needle is found in the uniform magnetic field produced by earth and bar magnet

The correct option is A Both A and R are true and R is the correct explanation of AIn Deflection magnetometer ,the bar magnet is kept at a distance from the magnetic needle and the deflection thus observed is due to the earth's and bar magnet's magnetic field..

Assertion (A) : In deflection magnetometer a short magnetic needle is arranged in the compass box
Reason (R) : The magnetic needle is found in the uniform magnetic field produced by earth and bar magnet

The correct option is A Both A and R are true and R is the correct explanation of A
In Deflection magnetometer ,the bar magnet is kept at a distance from the magnetic needle and the deflection thus observed is due to the earth's and bar magnet's magnetic field..