There is a potential difference of 0.90 V between the ends of a 20 cm long graphite rod that has a cross-sectional area of 1.8 mm2. The resistivity of graphite is 7.5 x 10-6 -m. (a) Find the resistance of the rod. (b) Find the current. (c) Find the electric field inside the rod.
There is a potential difference of 0.90 V between the ends of a 20 cm long graphite rod that has a cross-sectional area of 1.8 mm2. The resistivity of graphite is 7.5 x 10-6 -m. (a) Find the resistance of the rod. (b) Find the current. (c) Find the electric field inside the rod.
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 8P: A 0.900-V potential difference is maintained across a 1.50-m length of tungsten wire that has a...
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