Answered: A lead rod has a length of 30.00cm and…

A lead rod has a length of 30.00cm and a resistance of 5.00μ. What is the radius of the rod? (Hint: The resistivity of lead is 22.00 × 10-8) O a. 6.48cm O b. 6.00cm O c. 3.48cm O d. 3.00cm

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter20: Electric Current, Resistance, And Ohm's Law

Section: Chapter Questions

Problem 33PE: a) Of what material is a wire made, if it is 25.0 m long with a 0.100 mm diameter and has a...

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Concept explainers

Temperature Variance of Resistance

Electrical resistance or simply resistance is the property of a material that opposes the free flow of electrons through it. The total amount of resistance to the flow of charges (or current) is affected by many factors like the length of the conducting material, its cross-sectional area, resistivity, and temperature.

Question

A lead rod has a length of 30.00cm and a
resistance of 5.00μ. What is the radius of
the rod? (Hint: The resistivity of lead is
22.00 × 10-8)
O a. 6.48cm
O b. 6.00cm
O c. 3.48cm
O d. 3.00cm

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