Question: A copper wire has a square cross section 2.3 mm on a side. The wire is 4.0 m long and carries a current of 3.6

A copper wire has a square cross section 2.3 mm on a side. The wire is 4.0 m long and carries a current of 3.6 A. The density of free electrons is 8.5 X 1028/m3. Find the magnitudes of
(a) The current density in the wire and
(b) The electric field in the wire.
(c) How much time is required for an electron to travel the length of the wire?

Step by Step Solution

★★★★★

3.43 Rating (156 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

IDENTIFY EpJ where J1A The drift velocity is given by 1 ngv1 SET UP For copp... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

P-E-C-R (87).docx

120 KBs Word File

Students Have Also Explored These Related Electricity and Magnetism Questions!

A steel bar has a square cross section of width b = 2.0 in. (see figure). The bar has pinned supports at the ends and is 3.0 ft long. The axial forces acting at the end of the bar have a resultant P...

A wooden beam has a square cross section as shown. Determine which orientation of the beam provides the greatest strength at resisting the moment M. What is the difference in the resulting maximum...

A copper wire has a 25-m resistance at 20oC. When the wire is carrying a current, heat produced by the current causes the temperature of the wire to increase by 20oC. (a) What is the change in the...

A copper wire has a square cross section 2 . 3 mmmm on a side. The wire is 4 . 0 mm long and carries a current of 3 . 7 AA . The density of free electrons is 8 . 5 1 0 2 8 m 3 8 . 5 1 0 2 8 m 3 .

A copper wire has a square cross section 2 . 4 mm on a side. The wire is 4 . 5 mm long and carries a current of 4 . 0 A . The density of free electrons is 8 . 5 1 0 ^ 2 8 m 3

A copper wire has a square cross section 2 . 4 mm on a side. The wire is 4 . 5 m long and carries a current of 4 . 0 A . The density of free electrons is 8 . 5 1 0 ^ 2 8 m 3

A copper wire has a square cross section 2 . 7 mm on a side. The wire is 3 . 5 m long and carries a current of 3 . 1 A . The density of free electrons is 8 . 5 1 0 2 8 m 3 .

A copper wire has a square cross section 2 . 8 mm on a side. The wire is 4 . 5 m long and carries a current of 3 . 3 A . The density of free electrons is 8 . 5 1 0 2 8 m - 3 .

A copper wire has a square cross section 2 . 4 mmmm on a side. The wire is 3 . 6 mm long and carries a current of 3 . 4 AA . The density of free electrons is 8 . 5 1 0 2 8 m 3 8 . 5 1 0 2 8 m 3 ....

A copper wire has a square cross section 3 . 0 mmmm on a side. The wire is 4 . 3 mm long and carries a current of 4 . 0 AA . The density of free electrons is 8 . 5 1 0 2 8 m 3 8 . 5 1 0 2 8 m 3 .

State for each account whether it is likely to have (a) Debit entries only, (b) Credit entries only, or (c) Both debit and credit entries. Also, indicate its normal balance. 1. Accounts Receivable 2....

What type of new applications can emerge from knowing locations of users in real time? What if you also knew what they have in their shopping cart, for example?

over Corporation would like to transfer excess cash to its sole shareholder, Aleshia, who is also an employee. Aleshia is in the 2 4 % tax bracket, and Rover is subject to a 2 1 % rate. Because...

Refer to Exercise E19-25. Southern desires a 40% target net profit after covering all costs. Considering the total costs assigned to the Halbert engagement in Exercise El9-25, what would Southern...

Refer to Exercise El 9-23. The president of Southern suspects that her allocation of indirect costs could be giving misleading results, so she decides to develop an ABC system. She identifies three...

Washington WaterWorks manufactures snorkel gear. During the past month, Washington purchased 4,000 pounds of plastic to use in its dive masks, at a cost of $6,800. The standard price for the plastic...

For the year ended December 31, 2018, Fidelity Engineering reported pretax accounting income of $977,000. Selected information for 2018 from Fidelity's records follows: Interest income on municipal...

TechSolvers produces 8-foot USB cables. During the past year, the company purchased 500,000 feet of plastic-coated wire at a price of $0.25 per foot. The direct materials standard for the cables...

Find an equation of the plane. The plane through the point (1, 1, 1) and with normal vector i + j k

Hybrid cars are touted as a "green" alternative; however, the financial aspects of hybrid ownership are not as clear. Consider the 2006 Honda Accord Hybrid, which had a list price of $5,450...

The Boring Corporation is considering a 3-year project with an initial cost of $930,000. The project will not directly produce any sales but will reduce operating costs by $450,000 a year. The...

In 1 9 5 2 , A . S . Douglas wrote his University of Cambridge Ph . D . dissertation on human - computer interaction and created the first graphical computer game a version of Tic - Tac - Toe. The...