Questions
If the length of a bar magnet increases, then
A) magnetic induction on the axial line decreases
B) magnetic induction on the equatorial line increases
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a
A false, B true
b
A true, B false
c
A & B both true
d
A & B both false
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Correct option is D
BA=μo4π2Mdd1−l22 if l increases, BA increasesBE=μ04πMd2+l23/2 if d increases BE decreasesSimilar Questions
Due to a small magnet, intensity at a distance x in the end on position is 9 gauss. What will be the intensity at a distance on broad side on position?
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