What is the equivalent resistance of the circuit?What is the current in the circuit?What is the current in each resistor?What is the voltage drop across each resisor?
2006-09-18 17:27:57 · 9 answers · asked by xxgodsgift2youxx 1 in Science & Mathematics ➔ Physics
There is no way to tell from the information given what the equivalent resistance for the circuit is. And there is no way to determine the current. And you did not mention any resistors, just a "15 bell and a 9.0 buzzer," whatever those are.
There is not enough information in your question to answer any of the things you ask.
2006-09-18 17:36:48 · answer #1 · answered by pvreditor 7 · 0⤊ 0⤋
I'm assuming that 15 and 9.0 refer to the resistances. To find total resistance you take 1/15 plus 1/9 and then take the reciprocal to get 5.625 ohms. Using Ohms Law you can find the total current to be 7.822 A. The voltage drop has to be the same across each resistor, 44 volts. Using Ohms law again you get the currents for each resistor, 2.933A for the bell, 4.888 for the buzzer. As you can see if you add 2.933 and 4.888 together you get 7.822 as you would expect for the total current.
2006-09-18 17:44:59 · answer #2 · answered by Out a no where Dan 2 · 0⤊ 0⤋
1/R = 1/15 + 1/9
= (3 + 5)/45
= 8/45
R = 45/8 or 5.625 ohms
E = IR where E = potential difference, I = current in the circuit, and R = resistance of the circuit
Therefore, I = E/R
= 44/5.625 or 7.82 amp
Current in 15-ohm bell = 44/15 or 2.93 amp
Current in 9-ohm buzzer= 44/9 or 4.89 amp
Voltage across bell = ir = 2.93 x 15 =44 volts
Voltage across buzzer = ir = 4.89 x 9 = 44 volts
Note: i = current in resistor; r = resistance of resistor
2006-09-18 18:47:13 · answer #3 · answered by tul b 3 · 0⤊ 0⤋
a. a million / ((a million/15ohms) + (a million/9ohms)) = 5.625 ohms b. 44volts / 5.625 ohms = 7.822 amps c. 44volts / 15ohms = 2.933amps for the bell and 44volts / 9ohms = 4.888 amps for the buzzer. in case you upload 'em up it equals the entire present day of roughly 7.822. d. because they are under pressure out parallel the voltage drop throughout each is 40 4 volts because of the fact each parallel branch could have the comparable voltage yet distinctive currents.
2016-12-12 10:56:01 · answer #4 · answered by ? 4 · 0⤊ 0⤋
Reff = bell X buzzer / bell + buzzer.
Itotal = V / Reff
Ibell = V / bell
Ibuzzer = V / buzzer
Vbuzzer = Vbell = V
2006-09-18 17:37:27 · answer #5 · answered by Lil Cena 2 · 0⤊ 0⤋
I think you mean 15 volts and 9.0 volts. If that is true you will probably burn out the windings in both devices.
2006-09-18 17:39:00 · answer #6 · answered by Don R 5 · 0⤊ 0⤋
Sounds like an ohms law question
http://www.grc.nasa.gov/WWW/K-12/Sample_Projects/Ohms_Law/ohmslaw.html
2006-09-18 17:38:40 · answer #7 · answered by wowwhatwasthat 4 · 0⤊ 0⤋
Not enough info and so many Q! How to answer.
2006-09-19 05:14:21 · answer #8 · answered by dwarf 3 · 0⤊ 0⤋
well oh yea ??????
2006-09-18 17:29:31 · answer #9 · answered by mike k 3 · 0⤊ 1⤋