Physics, asked by pavinavi, 10 months ago

A manganin wire of length 2m has a diameter of 0.4mm with a resistance of 70 ohm . Find the resistivity of the material.

Answers

Answered by tarunmishra3210

2

Answer: Resistance- 70 ohm

Resistivity- ?

Length 2 meters

Area- 0.4mm

Now in meters- 0.0004

By resistivity formula

70=resistivity×2/ 0.0004

=70×0.0004/2

= 0.028/2

=0.014 m

Thnx and please support me

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