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  • Magnetic field intensity at the centre of a coil of 50 turns, radius 0.5 m and carrying a current of 2 A isOption: 1 <img alt="0.5 \times 10^{-5} \ma

Magnetic field intensity at the centre of a coil of 50 turns, radius 0.5 m and carrying a current of 2 A is

Option: 1

0.5 \times 10^{-5} \mathrm{~T}


Option: 2

1.25 \times 10^{-4} \mathrm{~T}


Option: 3

3 \times 10^{-5} \mathrm{~T}


Option: 4

4 \times 10^{-5} \mathrm{~T}


Answers (1)

best_answer

We know that magnetic field at the centre of circular coil,
B=\frac{\mu_0 \mathrm{In}}{2 \mathrm{r}}=\frac{4 \pi \times 10^{-7} \times 2 \times 50}{2 \times 0.5}=1.25 \times 10^{-4} \mathrm{~N}
 

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Rishi

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