• anonymous
For circuit (a) below, determine if the LED lights up. For circuit (b) below, which LED is brightest and which is dimmest? Show work. Here's the picture:
  • katieb
See more answers at
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get this expert

answer on brainly


Get your free account and access expert answers to this
and thousands of other questions

  • anonymous
For a), the big question is when a LED is on. DO you have an idea of when a diode (in general) will conduct? As for b), what makes a LED glow brighter? Is it voltage, or current or something else?
  • whpalmer4
The voltage across the LED in a) is 5v * (200 ohms/(200 ohms+300 ohms+100ohms)) = 5/3 V. As I recall, that's too low for most LEDs, usually need 2 V or more.

Looking for something else?

Not the answer you are looking for? Search for more explanations.