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Two identcal magnetic dipole of magnetic...

Two identcal magnetic dipole of magnetic moment `1.0 A-m^(2)` each, placed at a separation of 2 m with their axis perpendicular to each other. The resultant magnetic field at a point midway between the dipole is

A

`5 xx 10^(-7)T`

B

`sqrt5 xx 10^(-7)T`

C

`10^(-7)T`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
`B_(1)= (mu_(0))/(4pi) ((2M)/(d^(3)))`
`B_(2)= (mu_(0))/(4pi) ((M)/(d^(3)))`
`B_(1)= 2 xx 10^(-7)T, B_(2)= 10^(-7)T`
`B_("net") = sqrt(B_(1)^(2)+ B_(2)^(2))= sqrt5 xx 10^(-7)T`
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