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Electrical Conductance Formula:
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Electrical conductance (G) is the measure of a material's ability to allow the flow of electric current. It is the reciprocal of electrical resistance (R) and is measured in siemens (S). Conductance indicates how easily electric current can pass through a conductor.
The calculator uses the conductance formula:
Where:
Explanation: Conductance is inversely proportional to resistance. As resistance increases, conductance decreases, and vice versa.
Details: Calculating conductance is essential in electrical engineering for analyzing circuit performance, selecting appropriate materials for conductors, and designing efficient electrical systems with minimal energy loss.
Tips: Enter 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 relationship between conductance and conductivity?
A: Conductance (G) is the property of a specific object, while conductivity (σ) is the intrinsic property of a material. Conductance depends on both material and geometry.
Q2: What are typical conductance values for common materials?
A: Copper has high conductance (~58 MS/m), while insulators like rubber have very low conductance (~10⁻¹⁵ S/m).
Q3: How does temperature affect conductance?
A: For most metals, conductance decreases with increasing temperature due to increased atomic vibrations that impede electron flow.
Q4: What is the difference between DC and AC conductance?
A: DC conductance considers only resistance, while AC conductance also accounts for capacitive and inductive effects in the circuit.
Q5: When is conductance preferred over resistance in calculations?
A: Conductance is particularly useful in parallel circuit analysis, where total conductance is the sum of individual conductances.