An ohmmetre is used to measure the
Correct answer: C. resistance.
- A. current.
- B. voltage.
- C. resistance.
- D. conductance.
Explanation
An ohmmeter is specifically designed to measure resistance in an electrical component. Resistance is a crucial property that determines how much a component resists the flow of electrical current. This is why option C, 'resistance,' is the correct answer. The other options, current, voltage, and conductance, are not measured by an ohmmeter and are therefore incorrect.
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About Resistance and Resistivity
Resistance measures opposition to current in a conductor and follows R = V/I for an ohmic conductor, while resistivity is an intrinsic property of the material. Questions use R = ρL/A, examine effects of length, cross-sectional area and temperature, and distinguish resistance, resistivity, conductance and conductivity.
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