The magnetic induction field strength a distance 0-2 m on the axial line of a short bar magnet of moment 3-6 Am-2-is4-5times 10-4-T 9times 10-4-T4-5times 10-5-T 9times 10-5-T

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Toppr Admin · Accepted Answer

D-0-2mm-3-6Bartal-z-x3BC-0m4-x3C0-d3-2-xD7-4-x3C0-xD7-10-x2212-7-xD7-3-64-x3C0-xD7-0-2-3-9-xD7-10-x2212-5

The magnetic induction field strength at a distance 0.2 m on the axial line of a short bar magnet of moment 3.6 Am $^{2}$ is
$4.5 \times 10^{- 4} T$
$9 \times 10^{- 4} T$
$4.5 \times 10^{- 5} T$
$9 \times 10^{- 5} T$

$d = 0.2 m$
$m = 3.6$
$B a r t a l = \frac{z μ_{0} m}{4 π d^{3}}$
$= \frac{2 \times 4 π \times 10^{- 7} \times 3.6}{4 π \times (0.2)^{3}}$
$= 9 \times 10^{- 5}$

The magnetic induction field strength at a distance 0.2 m on the axial line of a short bar magnet of moment 3.6 Am2is4.5×10−4T9×10−4T4.5×10−5T9×10−5T

d=0.2mm=3.6Bartal=zμ0m4πd3=2×4π×10−7×3.64π×(0.2)3=9×10−5

The magnetic induction field strength at a distance 0.2 m on the axial line of a short bar magnet of moment 3.6 Am $^{2}$ is
$4.5 \times 10^{- 4} T$
$9 \times 10^{- 4} T$
$4.5 \times 10^{- 5} T$
$9 \times 10^{- 5} T$

$d = 0.2 m$
$m = 3.6$
$B a r t a l = \frac{z μ_{0} m}{4 π d^{3}}$
$= \frac{2 \times 4 π \times 10^{- 7} \times 3.6}{4 π \times (0.2)^{3}}$
$= 9 \times 10^{- 5}$