What is conductance? Write its unit.
(N/A) Conductance is defined as the reciprocal of the electrical resistance of a conductor. It represents the ease with which electric current flows through a material.
Mathematically,it is given by: $G = \frac{1}{R}$
where $G$ is the conductance and $R$ is the resistance.
The $SI$ unit of conductance is the siemens $(S)$,which is also equivalent to $\Omega^{-1}$ (ohm inverse) or mho.
Mathematically,it is given by: $G = \frac{1}{R}$
where $G$ is the conductance and $R$ is the resistance.
The $SI$ unit of conductance is the siemens $(S)$,which is also equivalent to $\Omega^{-1}$ (ohm inverse) or mho.
Explore More
Similar Questions
The figure shows a rectangular block with dimensions $x, 2x$ and $4x$. Electrical contacts can be made to the block between opposite pairs of faces (for example,between the faces labelled $A-A, B-B$ and $C-C$). Between which two faces would the maximum electrical resistance be obtained? ($A-A$: Top and bottom faces,$B-B$: Left and right faces,$C-C$: Front and rear faces)
Medium
View SolutionConsider a wire of length $L$ with a resistance of $5 \Omega$. Applying an external force,the wire is elongated such that its length becomes $3 L$. Assuming the resistivity and density of the material remain unchanged,the resistance of the elongated wire is (in $Omega$)
The resistance of a platinum resistance thermometer at $0\,^oC$ is $5\,\Omega$ and at $100\,^oC$ is $5.75\,\Omega$. When the resistance is $5.15\,\Omega$,the unknown temperature is ............ $^oC$.
Medium
View SolutionFor which material does resistivity decrease with an increase in temperature?
Medium
View Solution$A$ uniform metal wire carries a current of $2 \, A$ when an ideal cell of $3.4 \, V$ is connected across it. The wire has mass $8.92 \times 10^{-3} \, kg$, density $8.92 \times 10^3 \, kg/m^3$ and resistivity $1.7 \times 10^{-8} \, \Omega m$. Then the length of the wire is (in $m$)
Vedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo