Three wires of lengths 7m, 8m and 9m are made up of the same material and have the same area of cross section, which wire has the highest resistance? O a. All three wires have the same resistance O b. 8m long wire O c. 9m long wire O d. 7m long wire

Three wires of lengths 7m, 8m and 9m are made up of the same material and have the same area of cross section, which wire has the highest resistance? O a. All three wires have the same resistance O b. 8m long wire O c. 9m long wire O d. 7m long wire

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: Current And Direct Current Circuits

Section: Chapter Questions

Problem 2OQ: Wire B has twice the length and twice the radius of wire A. Both wires are made from the same...

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Question

Three wires of lengths 7m, 8m and 9m are made up of the same material and have the same area of cross section, which wire has the highest resistance?
O a.
All three wires have the same resistance
O b. 8m long wire
О.
9m long wire
O d. 7m long wire

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