How is resistance of a wire decreased when the area of cross section is increased
Or
Why is area of cross section of a conductor inversely proptional to the resistance?
Please explain step by step.
Answers
Answered by
1
Explanation:
- Resistance is directly proportional to the length of the wire, and inversely proportional to the cross sectional area of the wire. ... As a wire gets longer its resistance increases, and as it gets thinner its resistance also increases because its cross sectional area decreases.
Answered by
1
Answer:
Area of cross section: Resistance R is inversely proportional to the area of cross section ( A) of the conductor. This means R will decrease with increase in the area of conductor and vice versa. More area of conductor facilitates the flow of electric current through more area and thus decreases the resistance.
Similar questions