Zener diode help! (self-learning)

berkeman

Quote by pokaymahn

Wait what? How is that wrong? "The voltage dropped across the resistor in a circuit consisting of a single resistor and a voltage source is the total voltage across the circuit and is equal to the applied voltage."

http://www.tpub.com/neets/book1/chapter3/1-12.htm

Your link says exactly what Studiot was saying. What is the confusion?

*Studiot*

A voltage is what I measure with a voltmeter.

A voltmeter has two leads: you connect one to each of two different points in your circuit.

Here is a (slightly) more complicated arrangement to show what you would read on a voltmeter, connected at various locations.

pokaymahn

I thought the link was easier to understand... :(

*Studiot*

So how did your link lead you to think that the current remains the same but the voltage drops in your post 14?

pokaymahn

Well in a series circuit the same current is used by all the components. And all the components use a certain voltage which leaves less for the rest. Am I wrong?

*Studiot*

Yes that is correct.

And all the components use a certain voltage which leaves less for the rest.

This bit is another way of saying they divide the available total voltage.
Or another way of saying that they form a potential divider.

Which brings us back to post12

pokaymahn

Go on. Do you have a EE degree? How do you know this stuff?

*Studiot*

My first degree was applied maths, but I have been doing this for quite a few years.

Since you are self learning you might like to investigate this site

I have placed the link in vol 3 of their online textbook.
Look at chap 3 for zener diodes

http://www.allaboutcircuits.com/vol_3/index.html

I need to go to bed now but keep asking questions

medwatt

Looks like you need a good understanding of the basics first before you jump right away solving zener diode problems.
Here is a good book which is lucid and explains all the basic stuff well:

http://books.google.com/books?id=91l...ed=0CEsQ6AEwBA

This is from google books and you will be able to view some 200 pages before an restrictions.

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Studiot	A voltage is what I measure with a voltmeter. A voltmeter has two leads: you connect one to each of two different points in your circuit. Here is a (slightly) more complicated arrangement to show what you would read on a voltmeter, connected at various locations. Attached Thumbnails

pokaymahn	Well in a series circuit the same current is used by all the components. And all the components use a certain voltage which leaves less for the rest. Am I wrong?

medwatt	Looks like you need a good understanding of the basics first before you jump right away solving zener diode problems. Here is a good book which is lucid and explains all the basic stuff well: http://books.google.com/books?id=91l...ed=0CEsQ6AEwBA This is from google books and you will be able to view some 200 pages before an restrictions.