topic resistor in series and in parallel in PTC Mathcad
https://community.ptc.com/t5/PTC-Mathcad/resistor-in-series-and-in-parallel/m-p/399018#M156721
<HTML><HEAD></HEAD><BODY>I already tried to solve this problem but I think i'm using the wrong formula. Three 100 Ohms resistors are connected two in parallel and the other one is in series with the other two between a and b. The maximun power that can safety be delivered to any one resistor is 25.0 V. (a) What is the maximum voltage that can be applied to the terminals a and b? (b) for the voltage that determined in part (a), what is the power delivered to each resistor? What is the total power delivered? What i did first was, calculed the equivalent resistance circuit and then I calculed the potential difference, but I got something very defferent comparing with the answer. Please, would you give me a hint, thanks.</BODY></HTML>Fri, 04 May 2018 03:55:12 GMTernestocarillo-2018-05-04T03:55:12Zresistor in series and in parallel
https://community.ptc.com/t5/PTC-Mathcad/resistor-in-series-and-in-parallel/m-p/399018#M156721
I already tried to solve this problem but I think i'm using the wrong formula. Three 100 Ohms resistors are connected two in parallel and the other one is in series with the other two between a and b. The maximun power that can safety be delivered to any one resistor is 25.0 V.Fri, 04 May 2018 03:55:12 GMThttps://community.ptc.com/t5/PTC-Mathcad/resistor-in-series-and-in-parallel/m-p/399018#M156721ernestocarillo-2018-05-04T03:55:12Zresistor in series and in parallel
https://community.ptc.com/t5/PTC-Mathcad/resistor-in-series-and-in-parallel/m-p/399019#M156722
<HTML><HEAD></HEAD><BODY>On 10/5/2003 11:08:57 AM, ernestoeca wrote:<BR />>I already tried to solve this<BR />>problem but I think i'm using<BR />>the wrong formula. Three 100<BR />>Ohms resistors are connected<BR />>two in parallel and the other<BR />>one is in series with the<BR />>other two between a and b. The<BR />>maximun power that can safety<BR />>be delivered to any one<BR />>resistor is 25.0 V. (a) What<BR />>is the maximum voltage that<BR />>can be applied to the<BR />>terminals a and b? (b) for the<BR />>voltage that determined in<BR />>part (a), what is the power<BR />>delivered to each resistor?<BR />>What is the total power<BR />>delivered? What i did first<BR />>was, calculed the equivalent<BR />>resistance circuit and then I<BR />>calculed the potential<BR />>difference, but I got<BR />>something very defferent<BR />>comparing with the answer.<BR />>Please, would you give me a<BR />>hint, thanks.<BR /><BR />I presume you meant 25 watts as the maximum power?<BR /><BR />The single resistor is the choke point, you cannot supply more current than its power rating will allow. so I<SUP>2</SUP>R < 25 watts, resulting in a maximum current of 0.5 amps. Since the two parallel resistor result in 50 ohms, the total resistance between a and b is 150 ohms. With 0.5 amps, this results in 75 volts applied. Since the parallel portion has equal resistors, the current must be equally split between the two.<BR /><BR />Can you take it from here?<BR /><BR />TTFN,<BR />Eden</BODY></HTML>Sun, 05 Oct 2003 07:00:00 GMThttps://community.ptc.com/t5/PTC-Mathcad/resistor-in-series-and-in-parallel/m-p/399019#M156722IRstuff2003-10-05T07:00:00Z