Warming up on Discplacement Current

This assignment is due before 9 AM, Monday, November 6th, 2000.

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The following three questions refer to the material you were to read in preparation to the lesson. Questions one and two require you to write a three or four sentence response. Number three is a multiple choice question. Click in the appropriate circle.

You may change your mind as often as you wish. When you are satisfied with your responses, click the SUBMIT HOMEWORK button at the bottom of this page.

WarmUp questions are worth 5 points each towards your "Homework and Web Assignments" score (250 points total).




1.

Note: The reading for today's class is Chapter 29 Section 10.

In your own words, please explain why the concept of displacement current is necessary. Is a displacement current a real current? Does it produce a real mangetic field? What are the units of displacement current?



2.

A parallel plate capacitor is made of two circular plates of radius 10 cm separated by a gap of 0.1 mm. At time t, the capacitor is being charged by a current of 2 A. Estimate the magnetic field produced in the capacitor gap, 1 cm in from the edge.





3.


A conducting rod of length L travels in a uniform magnetic field as shown. Which of the following statements is true?

An electric field is set up along the rod in the upward direction.

An emf is induced along the rod.

The electrons in the rod will initially migrate upward.

All of the above.

Below is a space for your thoughts, including general comments about today's assignment. What was hard or confusing (or cool)? What would you like to spend extra time on in class? Do you see how this subject fits in with the others we have discussed?




You may change your mind as often as you wish. When you are satisfied with your responses click the SUBMIT button.

I received no help from anyone on this assignment.



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