11 May
2010
11 May
'10
9:14 a.m.
At 11:05 AM 5/11/2010, Chuck Guzis wrote:
In defense of the list, you didn't completely
specify the initial
conditions. Obviously, the bulbs weren't identical.
The four bulbs were identical as far as I could tell. Same
flashlights, off the rack, as I said "I bought four $1 flashlights".
I was perplexed. I assume it was due to some initial high resistance
that dropped once one of the bulbs won the battle to light, which
lowered the resistance for that bulb.
I was moreso perplexed about the poor specification for this take-home
assignment. How the average student was supposed to come up with
four bulbs and a power source to correctly light them, when instructed
to use "Christmas bulbs"? LEDs? Incandescents? What voltage?
My son reported that no one in the class came as close to an actual
circuit as he did. He got full credit because his circuit was correct
as judged by the teacher, even though it did not work as it was supposed to.
- John