Question

resistivity of wire is 3.5 x 10^-5 then conductivity of wire is....​

Answer 1

$\red{\bigstar}\underline{\underline{\textsf{\textbf{ Given :- }}}}$

• The resistivity of the wire is 3.5 × 10-⁵ Ωm .

$\red{\bigstar}\underline{\underline{\textsf{\textbf{ To Find :- }}}}$

• The conductivity of the wire .

$\red{\bigstar}\underline{\underline{\textsf{\textbf{ Solution :- }}}}$

Given that the conductivity of the wire is , 3.5 × 10-⁵ Ω.m We need to find the conductivity .We know that activity is the reciprocal of resistivity.

So that ,

$\\\sf\dashrightarrow Conductivity =\dfrac{1}{Resistivity } \\\\\\\sf\longrightarrow Conductivity = \dfrac{1}{3.5 * 10^{-5} \Omega. m } \\\\\\\sf\longrightarrow Conductivity = 0.28 * 10^5 \ \Omega^{-1}. m^{-1} \\\\\\\sf\longrightarrow \boxed{\pink{\frak{Conductivity = 2.8 \times 10^4 \sigma }}}$

$\rule{200}2$

MorE To KnoW :-

• The reciprocal of resistance is called conductance and its unit is mho .
• The electrical resistance depends upon length of conductor , Cross section area of conductor and the nature of the material .
• The Dimensional Formula of conductance is [ M-¹ L-² T³ I² ] .

$\rule{200}2$

Peace out ☃️

Answer 2

Answer:

★ Given :-

The resistivity of the wire is 3.5 × 10-⁵ Ωm .

★ To Find :-

The conductivity of the wire .

★ Solution :-

Given that the conductivity of the wire is , 3.5 × 10-⁵ Ω.m

We need to find the conductivity .

We know that conductivity is the reciprocal of resistivity.

Conductivity = 1/Resistivity

Conductivity = 1 / 3.5 x 10^−5 Ømega.m1

Conductivity=0.28 x 10^5 Ømega^−1 .m^−1

Conductivity=2.8 × 10^4 σ

Explanation:

The reciprocal of resistance is called conductance and its unit is mho .

The electrical resistance depends upon length of conductor , Cross section area of conductor and the nature of the material .

The Dimensional Formula of conductance is [ M-¹ L-² T³ I² ] .