If a voltage of 9V is applied across the end of a conductor and the current flowing through the conductor is 1ampere, what would be the resistance?
Correct answer: D. 10 ohm
- A. 1 Farad
- B. 10 coulomb
- C. 1 coulomb
- D. 10 ohm
- E. 1 ohm
Explanation
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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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