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Mekhanik [1.2K]
2 years ago
10

Describe the concept of force represent it quantiatively and derive unit of force

Physics
1 answer:
bogdanovich [222]2 years ago
8 0

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Force is defined as the rate of change of momentum. For an unchanging mass, this is equivalent to mass x acceleration. So, 1 N = 1 kg m s-2, or 1 kg m/s2.

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Answer:

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Explanation:

Given;

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Magnetic field for a straight wire is given as;

B = \frac{\mu I}{2 \pi r}

Where:

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Let \ \frac{\mu I}{2\pi}  \ be \ constant; = K\\\\B = \frac{K}{r} \\\\K = Br\\\\B_1r_1 = B_2r_2\\\\B_2 =\frac{B_1r_1}{r_2} \\\\B_2 = \frac{2.5*10^{-3} *0.126}{0.198} \\\\B_2 = 1.591 *10^{-3}\ T\\\\B_2 = 1.591 \ mT

Therefore, the magnetic field at a distance of 19.8 cm from the wire is 1.591 mT

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