3. Is the resistance of a conductor proportional or inverse proportional to its

Question

3. Is the resistance of a conductor proportional or inverse proportional to its cross-sectional area?
4. The two wired have all the same length but different materials. Does the resistance of conductor depends or not on material. Explain. Both conductors have the same length and are made from the same material. Explain how the 2 voltages measured are different from each other. 3. Is the resistance of a conductor proportional or inverse proportional to its cross-sectional area? IV. Law of Material 1. Connect together terminals l' and 2',2 and 3, and 3 and 4 2. Connect the power supply across terminals 1 and 4. Set the power supply to 4.5v. 3. Using the 5V range of the meter, measure the voltage across the terminal pairs 1 and l',3 and 3', 4 and 4'. Record in Table 4. Voltage measured Wire 1-1 0.73 3.3 4. The two wires have all the same len but different materials. Does the resistance of conductor depends or not on material. Explain

Explanation / Answer

2)

Because current flowing through both the conductors should be different

3)

The answer is surface area. Current travels on the surface of a conductor. Since surface area is where current

travels, the greater the cross sectional area, the greater the surface area, the lower the resistance.

4)

The resistance of a material depends upon the following: the length , the cross sectional area, type of material and

temperature

Related Questions

Navigate

• Browse (All)
• Browse 3
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.