Points A and B are situated perpendicular to | vedclass

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Question

(c)$B \propto \frac{1}{{{x^3}}} \Rightarrow \frac{{{B_1}}}{{{B_2}}} = {\left( {\frac{{{x_2}}}{{{x_1}}}} \right)^3} = {\left( {\frac{{3x}}{x}} \right)^

Vedclass · Accepted Answer

$27:1$

Vedclass · Answer

(c)$B \propto \frac{1}{{{x^3}}} \Rightarrow \frac{{{B_1}}}{{{B_2}}} = {\left( {\frac{{{x_2}}}{{{x_1}}}} \right)^3} = {\left( {\frac{{3x}}{x}} \right)^3} = \frac{{27}}{1}$

Points $A$ and $B$ are situated perpendicular to the axis of a $2\,cm$ long bar magnet at large distances $X$ and $3X$ from its centre on opposite sides. The ratio of the magnetic fields at $ A$ and $B$ will be approximately equal to

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