Given that a current of I(t)= 5t2+4 (where t is in s) is flowing parallel to the axis of a cylindrical conductor. If the cylinder has a radius of 0.2 mm and a length of 50 cm. Find the current density in units of MA/m2 at t=5.9 s. Note the unit MA/m²=10°A/m² Select one: O A. 267 O B. 1417 OC. 2595 OD. 3108 O E. 4250

Given that a current of I(t)= 5t2+4 (where t is in s) is flowing parallel to the axis of a cylindrical conductor. If the cylinder has a radius of 0.2 mm and a length of 50 cm. Find the current density in units of MA/m2 at t=5.9 s. Note the unit MA/m²=10°A/m² Select one: O A. 267 O B. 1417 OC. 2595 OD. 3108 O E. 4250

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.

Question

Given that a current of I(t)=
5t2+4 (where t is in s) is
flowing parallel to the axis of a
cylindrical conductor. If the
cylinder has a radius of 0.2
mm and a length of 50 cm.
Find the current density in
units of MA/m2 at t=5.9 s.
Note the unit
MA/m²=10°A/m²
Select one:
O A. 267
O B. 1417
Oc. 2595
O D. 3108
O E. 4250

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