A length of copper track on a printed circuit board has a cross-sectional area of 5.0

Question:

A length of copper track on a printed circuit board has a cross-sectional area of 5.0 × 10⁻⁸ m². The current in the track is 3.5 mA. You are provided with some useful information about copper:

1 m³ of copper has a mass of 8.9 × 10³ kg

54 kg of copper contains 6.0 × 10²⁶ atoms

In copper, there is roughly one electron liberated from each copper atom.

a. Show that the electron number density n for copper is about 10²⁹ m⁻³.

b. Calculate the mean drift velocity of the electrons.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Cambridge International AS And A Level Physics Coursebook

ISBN: 9781108859035

3rd Edition

Authors: David Sang, Graham Jones, Gurinder Chadha, Richard Woodside

See More Books

Question Posted: Sep 24, 2021 02:22 AM

See More Questions

The current in a circuit is tripled by connecting a 500- resistor in parallel with the resistance of the circuit. Determine the resistance of the circuit in the absence of the 500- resistor.
You are provided with the following transactions that took place during a recent fiscal year. InstructionsComplete the table indicating whether each item (1) Should be reported as an operating (O)...
You are provided with the following transactions that took place during a recent fiscal year. (a) Recorded depreciation expense on the plant assets.(b) Incurred a loss on disposal of plant assets.(c)...
A puck on a horizontal, frictionless surface is attached to a string that passes through a hole in the surface, as shown in FIGURE 11-52. As the puck rotates about the hole, the string is pulled...
It is argued that high-tech products will dominate trade in the 21st century. Does this mean that emerging market countries will be left out of this development?
Using the ledger balances and additional data given, do the following for Cross Lumber for the year ended December 31, 201X: 1. Prepare the worksheet. 2. Prepare the income statement, statement of...
Determine the direction of the magnetic field at $\mathrm{P}$ due to $(a)$ the current loop in Figure 28. 21a and (b) segments A and C of the current loop in Figure 28. 21b. Data from Figure 28....
Hall Corporation reported the following operating results for two consecutive years. Required a. Compute the percentage changes in Hall Corporations income statement components between the two years....
10.Carp Co has announced that it will pay an annual dividend equal to 55% of earnings. Its earnings per share is $0.80, and it has ten million shares in issue. The return on equity of Carp Co is 20%...
Luxor Travel arranges 1-week tours to southern Egypt. The agency provides 7, 4,7, and 8 rental cars over the next 4 weeks. Luxor Travel subcontracts with a local car dealer to supply rental needs....
A car headlamp bulb has a resistance of 36 . Calculate the current in the lamp when connected to a 12 V battery.
a. Explain the difference between potential difference and e.m.f. b. A battery has negligible internal resistance, an e.m.f. of 12.0 V and a capacity of 100 A h (ampere-hours). Calculate: i. The...
Journalize, record, and post when appropriate the following transactions into the sales journal (same headings as exercise E13-1A) and general journal (page 1). All sales carry terms of 2/10, n/30....
One year ago, your company purchased a machine used in manufacturing for $120,000. You have learned that a new machine is available that offers many advantages and you can purchase it for $145,000...
Record entries in the General Journal to write off and recover these overdue sales invoices. Use one of the following tax rates: (i) 5% GST only; (ii) 13% HST; or (iii) 5% GST and 7% PST. Jan. 21...
Read these three articles and share your thoughts on how businesses should reshape their strategies in the aftermath of COVID 19. Refer to pricing strategies, to explain how this pandemic will change...
I need an explanation and understanding on the following: In team building, what are the most important takeaways?
The context for the exam is the following case that we discussed in class: (Bombardier) Benoit Aubert, Simon Bourdeau, and Brett Walker. "Successfully Navigating the Turbulent Skies of a Large-Scale...
The solar panels on the roof of a house measure 4.0 m by 6.0 m. Assume they convert 12% of the incident EM wave's energy to electric energy. (a) What average power do the panels supply when the...
At the beginning of the year, Lam Ltd. had total assets of $800,000 and total liabilities of $500,000. Use this information to answer each of the following independent questions. (a) If Lam's total...
An alkyne with molecular formula C 5 H 8 was treated with sodium in liquid ammonia to give a disubstituted alkene with molecular formula C 5 H 10 . Draw the structure of the alkene.
Predict the major product expected for each of the following reactions: (a) (b) (c) (d) (e) (f) ? XS HCI CI 1) xs NANH/NH3 2) H,0 CI
Suggest reagents that would achieve the following transformation: CI CI CI
5.Depict how a country's governmental policies and/or actions could affect possible investment.
An investor purchased an equity fund several years ago at a total cost of $5,000 and sold it this year receiving $12,500 in total proceeds. During the holding period, capital gains distributions of...
You are planning security protocols for your companys new server room. Whats the sim- plest way to help physically keep potential attackers away from your servers?

A length of copper track on a printed circuit board has a cross-sectional area of 5.0

Question:

Step by Step Answer:

Given Crosssection Area A of copper 50 x 108 m I 35 mA 00035 A As per data given a 54kg atom c...View the full answer

Cambridge International AS And A Level Physics Coursebook

Students also viewed these Sciences questions