A short bar magnet of magnetic moment 25JT^(-1) is placed with its axis perpendicular to earth's field direction. At what distance from the centre of the magnet,the resultant field is inclined at 45^(@) with earth's field, if H=0.4xx10^(-4)T.

A short bar magnet of magnetic moment 25JT^(-1) is placed with its axi

1.	A short bar magnet of magnetic moment 25JT^(-1) is placed with its axis perpendicular to earth's field direction. At what distance from the centre of the magnet,the resultant field is inclined at 45^(@) with earth's field, if H=0.4xx10^(-4)T.
Answer» 5 m 0.5 m 2.5 m 0.25 m ANSWER :B

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A short bar magnet of magnetic moment 25JT^(-1) is placed with its axis perpendicular to earth's field direction. At what distance from the centre of the magnet,the resultant field is inclined at 45^(@) with earth's field, if H=0.4xx10^(-4)T.

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