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  • A long solenoid is formed by winding   turns <img alt="\mathrm{cm^{-1}}" src="https://entrancecorner.oncodecogs.co

A long solenoid is formed by winding 70  turns \mathrm{cm^{-1}}. If  \mathrm{2.0 A} current flows, then the magnetic field produced inside the solenoid is __________\mathrm{\left ( \mu _{0}=4\pi\times 10^{-7}TmA^{-1} \right )}

Option: 1

88\times 10^{-4}\mathrm{T}


Option: 2

352\times 10^{-4}\mathrm{T}


Option: 3

176\times 10^{-4}\mathrm{T}


Option: 4

1232\times 10^{-4}\mathrm{T}


Answers (1)

best_answer

\mathrm{B=\mu _{0}ni}

\mathrm{=4\times \frac{22}{7}\times 10^{-7}\times 70\times 100\times 2}

\mathrm{=176\times 10^{-4}}

Posted by

Sanket Gandhi

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