Physics · Electrical energy and power, electrical resistivity and conductivity
The product of resistivity and conductivity of a cylindrical conductor depends o
The product of resistivity and conductivity of a cylindrical conductor depends on
- A. Temperature
- B. Material
- C. Area of cross-section
- D. None of the above
Step-by-step solution
Resistivity (ρ) and conductivity (σ) are reciprocals: σ = 1/ρ. Therefore, their product ρσ = 1, which is a constant and does not depend on temperature, material, area of cross-section, or any other factor.
Related MCQs
- The lighting circuit is used for running:…
- Assertion When current through a bulb decreases by the glow of bulb decreases by Reason Glow (Power) which is directly proportional to squar…
- The electrical energy in kilowatt hours consumed in operating ten bulbs for 10 hrs/day in a month of 30 days is…
- Kilowatt-hour is the unit of…
- is applied when…