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gtnhenbr [62]
3 years ago
5

What is the difference between Earth's magnetic and geographic poles? How do navigators take advantage of this?

Physics
1 answer:
Triss [41]3 years ago
5 0
Earth's magnetic poles<span> are located near, but not quite exactly at, our planet's </span>geographic poles<span> (the "spin axis" on a globe). Compasses work as direction-finding devices because </span>Earth<span> has a </span>magnetic<span> field. The needle of a compass, itself a small bar </span>magnet<span>, points </span>in the<span> direction of the </span>magnetic pole<span>.</span>
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Answer:

The magnitude of magnetic field at given point = 5.33 × 10^{-5} T

Explanation:

Given :

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Separation between both wires = 8.0 cm

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From biot savert law,

We know the magnetic field due to long parallel wires.

⇒ B = \frac{\mu_{0}i }{2\pi R}

Where B = magnetic field due to long wires, \mu_{0} = 4\pi \times10^{-7}, R = perpendicular distance from wire to given point

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so we write,

∴ B = B_{1} + B_{2}

 B = \frac{\mu_{0} i}{2\pi R_{1} } +  \frac{\mu_{0} i}{2\pi R_{2} }

 B =\frac{ 4\pi \times10^{-7} \times5}{2\pi } [\frac{1}{0.03} + \frac{1}{0.05} ]

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3 0
3 years ago
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Answer:

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7 0
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