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Conductance and Resistance Formula:
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The conductance vs resistance formula describes the inverse relationship between electrical conductance and resistance. Conductance (G) measures how easily electric current flows through a material, while resistance (R) measures how much the material opposes current flow.
The calculator uses the fundamental electrical formula:
Where:
Explanation: This formula shows that conductance is the reciprocal of resistance. As resistance increases, conductance decreases, and vice versa.
Details: Understanding the relationship between conductance and resistance is fundamental in electrical engineering and circuit analysis. It helps in designing efficient electrical systems, analyzing circuit performance, and selecting appropriate materials for conductors.
Tips: Enter the resistance value in ohms (Ω). The value must be greater than zero. The calculator will automatically compute the corresponding conductance in siemens (S).
Q1: What is the unit of conductance?
A: The SI unit of conductance is the siemens (S), which is equivalent to 1/ohm or ampere per volt.
Q2: Can conductance be negative?
A: No, conductance is always a positive value since resistance is always positive in passive electrical components.
Q3: What is the relationship in terms of conductivity?
A: Conductance relates to conductivity (σ) through the formula G = σ × A/L, where A is cross-sectional area and L is length.
Q4: How does temperature affect conductance?
A: For conductors, conductance typically decreases with increasing temperature, while for semiconductors it generally increases.
Q5: What are typical conductance values?
A: Conductance values vary widely - from very high for good conductors like copper to very low for insulators like glass or rubber.