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Conductance Formula:
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Conductance (G) is the reciprocal of electrical resistance (R), representing how easily electric current flows through a material. It is measured in Siemens (S) and provides an alternative way to express the conductive properties of materials.
The calculator uses the conductance formula:
Where:
Explanation: Conductance increases as resistance decreases, indicating better conductivity. A material with zero resistance would have infinite conductance.
Details: Conductance calculations are essential in electrical engineering, circuit design, material science, and quality control of conductive materials. It helps in analyzing the efficiency of electrical components and systems.
Tips: Enter the resistance value in Ohms (Ω). The value must be greater than zero. The calculator will automatically compute the conductance in Siemens (S).
Q1: What is the relationship between conductance and conductivity?
A: Conductance (G) is the property of a specific component, while conductivity (σ) is an intrinsic property of a material. Conductivity = Conductance × (Length/Cross-sectional area).
Q2: What are typical conductance values?
A: Conductance values vary widely: copper wires have high conductance (low resistance), while insulators have very low conductance (high resistance).
Q3: Can conductance be negative?
A: No, conductance is always positive since resistance is always positive for passive components. Negative resistance (and thus negative conductance) only occurs in active devices under specific conditions.
Q4: How does temperature affect conductance?
A: For conductors, conductance decreases with increasing temperature. For semiconductors, conductance generally increases with temperature.
Q5: What is the unit of conductance?
A: The SI unit of conductance is Siemens (S), which is equivalent to 1/Ohm or Ampere/Volt.