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  • A current of 0.1 A circulates around a coil of 100 turns and having a radius equal to 5 cm. The magnetic field set up at the centre of the coil isOption: 1</stro

A current of 0.1 A circulates around a coil of 100 turns and having a radius equal to 5 cm. The magnetic field set up at the centre of the coil is

Option: 1

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


Option: 2

8 \pi \times 10^{-5} \mathrm{~T}


Option: 3

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


Option: 4

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


Answers (1)

best_answer

\frac{\mu_0 \mathrm{l}}{2 \mathrm{r}} \mathrm{N}=2 \times 10^{-7} \times \pi \times \frac{0.1}{0.05} \times 100

Posted by

Rakesh

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