Derive the equation for total current in a *parallel circuit using the equation Itotal=I1+I2+I3 and I=(DELTA)V/R Itotal = (DELTA)Vtotal / Rtotal I = current Itotal = total current I1= current of 1 I2= current of 2 I3= current of 3 (DELTA)V= change in voltage R= resistance *parallel circuit = circuit with multiple paths where the current can flow.
2007-03-05 15:55:04 · 3 answers · asked by Anonymous in Education & Reference ➔ Homework Help
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Should have said please.
2007-03-05 15:59:43 · answer #1 · answered by Oscar Himpflewitz 7 · 0⤊ 0⤋
Kinda unclear on what you want to know here....
If you're referring to I1 as having 1 amp, I2 having 2 amps, I3, having 3 amps, please specify in the future (Theory ettiquite). As for your question, your answer would be 6 if i'm reading it right. Current (Total Flow) is equal to the flow of all the current paths.
As for your equation I=E/R What is your Rtotal? or you Esource? In a parallel circuit when E is constant there would be no voltage change in the circuit as resistance doesn't effect it. (Sorry E = V = Voltage, it's an Ohm's Law thing)
If E = 120V and I = 6A Then your Rtotal would be 20Ω (Ohms)
Now if you're wondering about the effects of changing voltage... Take into consideration, I=E/R... When you increase E, keeping R the same, you have more Current as it is porportional to Voltage. Keeping Voltage the same but adding more Resistance means that Current drops, thus R is inversely porportional to I.
Ex:
E = 120V and R = 30Ω, then your I = 4A
E = 120V and R = 10Ω then your I = 12A
E = 100V and R = 20Ω then your I = 5A
E = 220V and R = 20Ω then your I = 11A
2007-03-05 16:42:11 · answer #2 · answered by Anonymous · 0⤊ 0⤋
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2016-03-29 01:33:54 · answer #3 · answered by Anonymous · 0⤊ 0⤋