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A wire having length 2.0 m diameter 1.0 mm and resistivity 1.963 xx 10^(-8) Ω m is connected in series with a battery of emf 3V and internal resistance IΩ. Calculate the resistance of the wire and current in the circuit. |
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Answer» SOLUTION :Given l =2m D =1.0 mm `rho = 1.963 xx10^(-8) omega m EPSILON =3v r = 1 omega R= ? I=?` `R=(rho l)/(A)` `R=5xx10^(-2) omega` `I=2.85 A` |
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