Reference no: EM13962740
1. In your own words, explain the difference between a conductor, an insulator, and a semiconductor. Give an example of each to illustrate your comparison.
2. Explain the difference between charging by induction and charging by contact. Include details of how the charging occurs.
3. If two equal charges are separated by a certain distance, the force of repulsion is F. Given F1, if each charge in F1 is doubled and the distance is cut in half, what is the new value of the force of repulsion, F2? Express your answer in terms of F1.
4. The electrical force on a 2-columb charge is 60 Newton's. What is the magnitude of the electric field at the place where the charge is located?
5. What is an electric field? How do you determine the magnitude and direction of the field at a given point?
6. Two point charges are separated by 6 cm. The attractive force between them is 20 N. Find the force between them when they are separated by 12 cm. (Why can you solve this problem without knowing the magnitudes of the charges?)
7. Explain the difference between electrical potential and electrical potential energy.
8. What is the voltage at the location of a 0.0001-coulomb charge that has an electric potential energy of 0.5 joules?
9. A droplet of ink in an industrial ink-jet printer carries a charge of 1.6 x 10-11 coulombs and is deflected onto paper by a force of 3.2 x 10-4 Newton's. Find the strength of the electric field to produce this force.
10. Cite the three major differences between gravitational and electrical forces.
Using intermediaries in the service distribution channel
: What are the characteristics of a service that would make communication a good substitute for transportation? What are the benefits of using intermediaries in the service distribution channel?
|
What are the key changes in it
: It is national interest that traditionally drives security policy within a nation and how it is articulated to other nations in the international community (diplomacy). What are the key changes in it - be aware they probably won't jump out at you
|
New program to encourage college students
: The government is proposing a new program to encourage college students to go into government jobs (teaching and service). The program will help cover the cost of college if you work in the government. With the new program, you would only need to p..
|
Strategic goals and the design of organization structure
: What are the key structural issues that Alan Mulally encountered as the incoming President and CEO of Ford Motor Company? How has Alan Mulally addressed the structural issues identified in the previous question? Explain the context that Ford's strate..
|
Find strength of the electric field to produce this force
: A droplet of ink in an industrial ink-jet printer carries a charge of 1.6 x 10-11 coulombs and is deflected onto paper by a force of 3.2 x 10-4 Newton's. Find the strength of the electric field to produce this force.
|
Develop guidelines reflecting organisational policy
: Develop guidelines reflecting organisational policy and procedures to be used for conducting research - develop a report describing and evaluating the research undertaken and the findings presented.
|
A machine needs a minimum of 100 sec to sort 1000 names by
: A machine needs a minimum of 100 sec to sort 1000 names by quick sort the minimum time needed to sort 100 names will be approximately?
|
Describes a project needs and asks for proposed solutions
: Request for Proposals (RFP) are defined as documents that describes a project's needs and asks for proposed solutions from qualified vendors (Peters, 2011)
|
The withit corporation is considering two alternatives
: The Withit Corporation is considering two alternatives for automating their machine-parts operation. Alternative 1 requires an initial investment of $70,000 and decreasing yearly O&M costs as shown in the table below. It has a five-year life span.
|