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Re: [Phys-L] more about basic DC circuits



On 12/15/2013 8:14 PM, John Denker wrote:
The last true/false quiz provoked an interesting discussion.

So let's take another step in that direction. I'll make it
really easy, by telling you where you can look up the answers.

Q3: True or false: Electrical current is conserved. This
means current cannot be "used up".
Knight, page 892 and page 896.

Q4: True or false: In a circuit, energy can be "used up".
Knight, page 896.

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Yes, charge is conserved.
Yes, electrical energy is used up by dissipation in to other forms - in heating for example.
But no, He didn't mean current is conserved, and no, he didn't mean energy is not conserved.

It is just nit-picking, of course.

Brian W