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10 सेमी. त्रिज्या की वृत्ताकार कुण्डली में तार के 50 फेरे है । यदि कुण्डली में 10 ऐम्पियर की धारा प्रवाहित की जाये तो उसके केंद्र पर चुम्बकीय क्षेत्र की तीव्रता क्या होगी ?

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Correct Answer - `3*14xx10^(-3)` टेसला,
`I=10A,n=50,r=10cm=0*1`
`B=(mu_(0))/(4pi)*(2pinI)/(r)=10^(-7)xx(2xx3*14xx50xx10)/(0*1)`
`=31400xx10^(-7)=3*14xx10^(-3)T`

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