Yea, I can't seem to figure out the current for bulbs B and C. I mean I get the voltage for D and E V/2R, add the 2 resistances together so the current for bulb B would be VR? I can't figure out what it would be for A? would it be:
V/((1/R + 1/R) + R)?
I have difficulty understanding this.
Heh Waffle? I like waffles they are delicious.
I would use V= IxR They give no numbers for the problem, so I would just have R or 1/R for the resistances in any given bulb?
B and C Resistance = 1/R + 1/R
= 2/R
D and E Resistance = R + R...
Homework Statement
Rank the lightbulbs in order of brighness.
http://img641.imageshack.us/img641/5871/lightbulb.png
Homework Equations
All lightbulbs are identical.
The Attempt at a Solution
A is brightest, then B=C, then D=E
A>B=C>D=E
B and C are the same...