|
What happens to the bulbs
Page history
last edited
by Joe Redish 9 years, 8 months ago
8.5.P10
In the figure at the right is shown an electrical network containing a battery with EMF = E, and three resistors with resistances R1, R2, and R3. All three resistances are identical and have a resistance R. In the circuit is a switch, which is open when we start. In addition, two points in the network are marked with dots and the numbers "1" and "2". |
|
- If the switch is open, rank the brightness of the bulbs.
- If the switch is open, calculate the current through the battery. (Express your answer in terms of the symbols given.)
- If the switch is closed, what happens to the brightness of each bulb? (Increase, Decrease, Same) Now rank the brightness of the three bulbs. Briefly explain your reasoning.
- If the switch is open and we connect the two terminals of an ammeter to the points 1 and 2, what would happen to the brightness of each of the bulbs? (Increase, Decrease, Same) Briefly explain your reasoning.
Joe Redish 10/19/02
What happens to the bulbs
|
Tip: To turn text into a link, highlight the text, then click on a page or file from the list above.
|
|
|
Comments (0)
You don't have permission to comment on this page.