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resistance vs resistivity

Both 'resistance' and 'resistivity' are correct terms, but they are used in different contexts in physics. 'Resistance' refers to the measure of opposition to the flow of electric current, while 'resistivity' is a property of a material that quantifies how strongly it resists the flow of electric current. They are not interchangeable as 'resistance' is a property of an object, while 'resistivity' is an intrinsic property of the material itself.

Last updated: March 24, 2024 • 762 views

resistance

The term 'resistance' is correct and commonly used in physics to refer to the measure of opposition to the flow of electric current.

Use 'resistance' when referring to the measure of opposition to the flow of electric current in a circuit or material.

Examples:

  • The resistance of the wire is too high for the current to flow efficiently.
  • Increasing the resistance in the circuit will reduce the current flow.
  • Someone declared my street a center of resistance.
  • The resistance protected and supported you.
  • It's obedience, not resistance.
  • Consequently, the Iraqi people must organise and develop their national resistance.
  • The resistance is a membrane with fluid.
  • Where available, resistance testing may be appropriate.
  • Lack of resistance to lopinavir was confirmed by phenotypic analysis.
  • None of these substitutions was either necessary or sufficient for resistance.
  • Three of 14 isolates had protease resistance mutations.
  • The key is drafting to eliminate wind resistance.
  • Disease resistance and longevity are also important characteristics for robust animal breeds.
  • Cypher beetles have an extraordinary resistance to pathogens.
  • Caterpillar recruited me into the resistance.
  • Regular determination of resistance is therefore recommended.
  • All in-vitro mechanisms of resistance are commonly observed in clinical isolates.
  • Add armed resistance to the list.
  • No mutations associated with tenofovir disoproxil fumarate resistance have been identified.
  • Cross resistance may occur with other macrolides.
  • They can now offer some resistance.
  • There is a penalty for resistance.

Alternatives:

  • impedance
  • ohmic resistance
  • electrical resistance
  • thermal resistance
  • mechanical resistance

resistivity

The term 'resistivity' is correct and commonly used in physics to refer to the intrinsic property of a material that quantifies how strongly it resists the flow of electric current.

Use 'resistivity' when referring to the intrinsic property of a material that determines its resistance to the flow of electric current.

Examples:

  • The resistivity of copper is lower than that of iron.
  • The resistivity of a material is measured in ohm-meters.
  • Geophysical station to measure underground electric resistivity changes using natural electromagnetic field variations.
  • System capable to provide ultra pure water (type 1) having a resistivity >14 MΩ.cm.
  • Silicon carbide (SiC) wafers having a resistivity of more than 10000 ohm-cm.
  • The degree of acidification is limited by the resistivity of the equipment used (e.g. membranes and anodes).
  • an electrical resistivity of 2 × 10-4 ohm cm or more.
  • b. An electrical resistivity of 2×10-4 ohm cm or more.
  • 'Bulk electrical conductivity' and 'sheet (surface) resistivity' should be determined using ASTM D-257 or national equivalents.
  • b. An electrical resistivity of 2 × 10-4 ohm cm or more.
  • c. Intrinsically conductive polymeric materials with a 'bulk electrical conductivity' exceeding 10000 S/m (Siemens per metre) or a 'sheet (surface) resistivity' of less than 100 ohms/square, based on any of the following polymers:
  • Protective clothing - Electrostatic properties - Part 1: Surface resistivity (Test methods and requirements) | | | |
  • CEN | EN 1149-1:1995 Protective clothing - Electrostatic properties - Part 1: Surface resistivity (Test methods and requirements) | 10.10.1996 | - | |
  • cntrinsically conductive polymeric materials with a 'bulk electrical conductivity' exceeding 10000 S/m (Siemens per metre) or a 'sheet (surface) resistivity' of less than 100 ohms/square, based on any of the following polymers:
  • The inspection body may, in accordance with the Code for Fire Test Procedures, prescribe a test on a sample partition in order to ensure compliance with the provisions of paragraph 2 on resistivity and temperature increase.'
  • c. Intrinsically conductive polymeric materials with a 'bulk electrical conductivity' exceeding 10000 S/m (Siemens per metre) or a 'sheet (surface) resistivity' of less than 100 ohms/square, based on any of the following polymers:
  • DC resistivity and/or chargability (IP) measurement carried out along a profile with a larger set of electrodes.
  • Double distilled water is the preferred eluent. Deionized water with a resistivity above 10 megohms/cm and total organic carbon content below 0,01 % can also be used.
  • In principle, calibration is carried out using dry air (taking into account atmospheric pressure) and extremely pure water (twice distilled and/or micro-filtered with extremely high resistivity > 18 MΩ).
  • the inspection body may, in accordance with the Code for Fire Test Procedures, prescribe a test on a sample partition in order to ensure compliance with the above provisions on resistivity and temperature increase.
  • Also known as 2D resistivity tomography.
  • G may be linked to the flow resistivity.

Alternatives:

  • electrical resistivity
  • specific resistance
  • volume resistivity
  • thermal resistivity
  • material resistivity

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