if the rate of decreasing volume charge density equals to, 4*10^6 C/m^3*s, what is the total current cross the surface of r=2 * mm , 0

if the rate of decreasing volume charge density equals to, 410^6 C/m^3s, what is the total current cross the surface of r=2 * mm , 0

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter19: Capacitors

Section: Chapter Questions

Problem 3RQ: A capacitor uses air as a dielectric and has a capacitance of 3 F. A dielectric material is inserted...

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Concept explainers

Electric field

A physical field present around an electrically charged particle that exerts a force on all other charged particles is called an electric field. The charged particles present in the field either repel or attract. From electric charges or time-varying magnetic fields, the electric field originates. One of the manifestations of electromagnetic force which is one of the four fundamental forces present in nature are the electric fields and magnetic fields.

Question

if the rate of decreasing volume charge
density equals to, 4*10^6 C/m^3*s, what is
the total current cross the surface of r=D2
mm, 0<Z<8
406 A O
480 A
No one of these results
402 A
O O O O O

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