A nichrome wire of length 100 cm and area of cross-section `0.5 m m^(2)` has a resistance of `2.2 Omega`. The resistivity of nichrome is

Question

A nichrome wire of length 100 cm and area of cross-section `0.5 m m^(2)` has a resistance of `2.2 Omega`. The resistivity of nichrome is

A nichrome wire of length 100 cm and area of cross-section `0.5 m m^(2)` has a resistance of `2.2 Omega`. The resistivity of nichrome is
A. `110Omega`
B. `0.11Omega m`
C. `121Omega m`
D. `11xx10^(-7) Omega m`

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - D
`rho=(RA)/(l)=(2.2xx0.5xx10^(-6))/(1)=11xx10^(_7)Omegam`

4 views Answered 2023-02-05 15:29