Warming up on Inductors

This assignment is due before 9 AM, Wednesday, November 8th, 2000.

Please type LAST name:

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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.

Here's one way of understanding a capacitor: It is a device that won't let the voltage between two points change too rapidly, because it stores up charge and has V = Q/C. The charge cannot be changed instantaneously, so the voltage cannot either.

Please describe an inductor in a similar way, that is, say what cannot be changed rapidly and why.



2.

Estimate the inductance of a solenoid made by buying a typical spool of wire from hardware store and winding it carefully around a broom handle.





3.


A resistor, an inductor an ideal battery and a switch are connected in series. Just after the switch is closed, which of the following are zero?

The current and the voltage across the inductor.

The current and the voltage across the resistor.

The voltage across the inductor and the voltage across the resistor.

None 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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