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प्रश्न
Using the formula \[\vec{F} = q \vec{v} \times \vec{B} \text{ and } B = \frac{\mu_0 i}{2\pi r}\]show that the SI units of the magnetic field B and the permeability constant µ0 may be written as N mA−1 and NA−2 respectively.
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उत्तर
Using the relation \[\vec{F} = q v^\rightharpoonup \times \vec{B}\] , we get
\[ = \frac{F}{Itv}\]
Force (F) = N
Current (I) = A
Time (T) = s
Velocity (v) = m/s
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