A wire of length 40 cm and area of cross section 0.1 millimetre square has a resistance of 0.8 ohm calculate the resistivity of wire in SI unit ?

A wire of length 40 cm and area of cross section 0.1 millimetre square

1.	A wire of length 40 cm and area of cross section 0.1 millimetre square has a resistance of 0.8 ohm calculate the resistivity of wire in SI unit ?
Answer» GIVEN : R=2Ω l=1 m d=0.4 mm =0.0004 mCross SECTION area of wire A= 4πd 2 = 4π×(0.0004) 2 =1.256×10 −7 m 2 Resistivity of the MATERIAL ρ= LRA ∴ ρ= 12×1.256×10 −7 =2.514×10 −7 ΩmExplanation:MARK as brainlist

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A wire of length 40 cm and area of cross section 0.1 millimetre square has a resistance of 0.8 ohm calculate the resistivity of wire in SI unit ? ​

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A wire of length 40 cm and area of cross section 0.1 millimetre square has a resistance of 0.8 ohm calculate the resistivity of wire in SI unit ?