eragon, 1 year ago

@drcaberry Since we don’t know what are the specs of each lamp I assume that none of them are the same model.

The only two bulb that have the same brightness are A and B, they are off.

drcaberry, 1 year ago

@eragon I'll take it! I assumed all bulbs were equivalent though.

drcaberry, 1 year ago (edited 1 year ago)

Answer in the follow on thread:
If you close S1 and S2, which two bulb have the same brightness? #BlackSTEM #AcademicMastodon #BlackAndSTEM #BlackInSTEM 👩🏾‍🎓👷🏾‍♀️👩🏾‍💻👩🏾‍🏫
#BlackMastodon #BlackFediverse #BlackFedi

ScriptFanix, 1 year ago

@drcaberry Voltage accross C and D isequal to the voltage generated by the cell. So C&D. But as S3 is left open, you could make the case that A&B have also the same brightness: off

JJKrawczyk, 1 year ago

@ScriptFanix @drcaberry Came to see if someone said this. It’s both if “zero” brightness is still defined as brightness.

drcaberry, 1 year ago

@JJKrawczyk @ScriptFanix oooohhhhh trick question! 😲🤣🤣

ScriptFanix, 1 year ago

@drcaberry @JJKrawczyk And also you let us assume that all light bulbs have the same resistance. Trick question indeed 😅

livingcoder, 1 year ago

@drcaberry Ah, now I see why you posted the question about full, partial, or no credit. Yeah, full credit makes sense in this case. Extra credit if they notice it.

digg, 1 year ago

@drcaberry

Well, neither A or B are on a completed circuit so I presume they will have the same brightness value of "none".