Two short bar mangets of length 1 cm each have magnetic moments 1.20 and 1.00 `am^(2)` respectively they have a common magnetic value of the resultant horizontal magnetic induction at the mid point O of the line joining their centre is close to
A
`2.56 xx10^(-4) wb//m^(2)`
B
`3.50 xx10^(-4) -wb//m^(2)`
C
`5.80 xx10^(-4) wb//m^(2)`
D
`3.6 xx10^(-5) wb//m^(2)`
Text Solution
Verified by Experts
The correct Answer is:
A
`because` Magnetic field due to short dipole `B=(mu_(0)M)/(4pix^(3))`
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