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1. 0xx1 0^(- 8)((5*0)/25)^2...

`1. 0xx1 0^(- 8)((5*0)/25)^2`

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Resistance of coil =R=`10`ohm
Cross-section area=A=`10X10^(-4)cm^2`
`A=10X10^(-8)m^2`
Resistivity =`1.6X10^(-8)ohm.m`
...
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