Given that a current of I(t)=7t2+4 (wheret is in s) is flowingparallel to the axis of a cylindricalconductor. If the cylinder has a radiusof 0.3 mm and a length of 50 cm.Find the current density in units ofMA/m2 at t=3.7 s.Note the unit MA/m²=10®A/m²Select one:O A. 647OB. 775OC. 1059D. 106O E. 353

The current density is the ratio of current and area. The current is given as

Answered: Given that a current of I(t)= 7t2+4…

Given that a current of I(t)= 7t2+4 (where t is in s) is flowing parallel to the axis of a cylindrical conductor. If the cylinder has a rad

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 90CP: What is the current through a cylindrical wire of radiusR = 0.1 mm if the current density is J=J0Rr...

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Given that a current of I(t)=
7t2+4 (wheret is in s) is flowing
parallel to the axis of a cylindrical
conductor. If the cylinder has a radius
of 0.3 mm and a length of 50 cm.
Find the current density in units of
MA/m2 at t=3.7 s.
Note the unit MA/m²=10®A/m²
Select one:
O A. 647
OB. 775
OC. 1059
D. 106
O E. 353

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