The magnitude of magnetic induction due to a short magnetic dipole of moment `4xx10^(-3) Am^(2)` at a diostance of 50 cm from its centre on axis is

Question

The magnitude of magnetic induction due to a short magnetic dipole of moment `4xx10^(-3) Am^(2)` at a diostance of 50 cm from its centre on axis is

The magnitude of magnetic induction due to a short magnetic dipole of moment `4xx10^(-3) Am^(2)` at a diostance of 50 cm from its centre on axis is
A. `4.4 xx10^(-9) T`
B. `6.4xx10^(-9)T`
C. `3.4 xx 10^(-9)T`
D. `2.4xx10^(-9) T`

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - B
`B_(axis)=(mu_(0))/(4pi)(2M)/(r^(3))=(10^(-7)xx2xx4xx10^(-3))/(125xx10^(-3))=6.4xx10^(-9)T`

4 views Answered 2023-02-05 15:29