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Electric Charges And Fields

Question

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Magnetic field of a short magnet at a distance lm on axial line is 1 oersted at a distance 2 m on the same line the intensity in oersted is

0.75

0.125

0.25

0.5

Solution

0.125

$B \propto \frac{1}{r^{3}} hence, \frac{B_{2}}{B_{1}} = {(\frac{r_{1}}{r_{2}})}^{3} B_{2} = {(\frac{r_{1}}{r_{2}})}^{3} \times B_{1} = {(\frac{1}{2})}^{3} \times 1 = 0.125 orested$

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Electric Charges And Fields

Magnetic field of a short magnet at a distance lm on axial line is 1 oersted at a distance 2 m on the same line the intensity in oersted is

0.75

0.125

0.25

0.5

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For Daily Free Study Material Join wiredfaculty

Electric Charges And Fields

Magnetic field of a short magnet at a distance lm on axial line is 1 oersted at a distance 2 m on the same line the intensity in oersted is 0.75 0.125 0.25 0.5

Some More Questions From Electric Charges and Fields Chapter

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

Magnetic field of a short magnet at a distance lm on axial line is 1 oersted at a distance 2 m on the same line the intensity in oersted is

0.75

0.125

0.25

0.5