Permeance is analogous to:a)Conductanceb)Reluctancec)Inductanced)Resis...
Permeance is a magnetic property, it is analogous to conductance. Reluctance is analogous to resistance.
View all questions of this test
Permeance is analogous to:a)Conductanceb)Reluctancec)Inductanced)Resis...
Permeance is a term used in electrical engineering to describe the ease with which magnetic flux can pass through a material or a magnetic circuit. It is analogous to conductance in electrical circuits.
Analogous to Conductance:
- Conductance is a measure of how easily electric current can flow through a conductor. It is the reciprocal of resistance, which measures the opposition to current flow. Conductance is given by the formula G = 1/R, where R is the resistance.
- Similarly, permeance is a measure of how easily magnetic flux can flow through a material or a magnetic circuit. It is the reciprocal of reluctance, which measures the opposition to magnetic flux flow. Permeance is given by the formula P = 1/Rl, where Rl is the reluctance.
- Just as conductance allows for easier current flow in electrical circuits, permeance allows for easier magnetic flux flow in magnetic circuits.
Difference from Reluctance:
- Reluctance, as mentioned above, is the opposition to magnetic flux flow. It is similar to resistance in electrical circuits. The formula for reluctance is Rl = L/μA, where L is the length of the magnetic path, μ is the permeability of the material, and A is the cross-sectional area of the magnetic path.
- Permeance is the reciprocal of reluctance, so while reluctance measures the opposition to magnetic flux flow, permeance measures the ease with which magnetic flux can flow.
Difference from Inductance:
- Inductance is a property of an electrical circuit that opposes changes in current flow. It is measured in henries (H). Inductance is related to the magnetic flux generated by a current in a circuit.
- Permeance, on the other hand, is a property of a magnetic circuit that determines how easily magnetic flux can pass through it. It is measured in reciprocal henries per meter squared (1/H·m^2).
- While both inductance and permeance are related to magnetic flux, they serve different purposes and are used in different contexts.
Conclusion:
- In summary, permeance is analogous to conductance in electrical circuits. Both permeance and conductance measure the ease with which a particular type of flow (magnetic flux or electric current) can pass through a material or circuit.
To make sure you are not studying endlessly, EduRev has designed Electrical Engineering (EE) study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Electrical Engineering (EE).