- #1
Roynish
- 7
- 0
Hey everyone,
This is quite a simple question, I think I'm just getting confused.
1. Homework Statement
Given Data:
Merlin: Resistance: 2 Ω / km, Maximum Current: 519
Pelican: Resistance: 1.5Ω/km, Maximum Current: 646
Penguin: Resistance: 4 Ω/km, Maximum Current: 357
Sparrow: Resistance: 11Ω/km, Maximum Current: 184
Swan: Resistance: 17Ω/km, Maximum Current: 140
Note: Maximum current that will pass through the wire is 360 A
State the maximum power loss per km for 10 possible combinations of wires.
Ploss=I²R
Total Resistance = 1/{(1/R1)+(1/R2)+(1/R3)..+(1/Rn)}
I'm not sure how current is divided up depending on the combination of wires.
First I tried to do 2x Merlin in parallel
Current is the same in components in parallel so:
Rtotal: [itex] (1/2 + 1/2)^-1 = 1 [/itex]
Ploss= I²R
[itex] = (360)^2 [/itex]
= 129600
Total Power loss; 129600x2= 259200 W
This is the same as just figuring out Merlin x1. Would I divide the current by 2 if I did 2x Merlin in series?
Also say I tried doing:
1x swan, 1x sparrow, 1x penguin
I have no idea what to do with currents. Add them together? Divide them up?Thanks for your help.
This is quite a simple question, I think I'm just getting confused.
1. Homework Statement
Given Data:
Merlin: Resistance: 2 Ω / km, Maximum Current: 519
Pelican: Resistance: 1.5Ω/km, Maximum Current: 646
Penguin: Resistance: 4 Ω/km, Maximum Current: 357
Sparrow: Resistance: 11Ω/km, Maximum Current: 184
Swan: Resistance: 17Ω/km, Maximum Current: 140
Note: Maximum current that will pass through the wire is 360 A
State the maximum power loss per km for 10 possible combinations of wires.
Homework Equations
Ploss=I²R
Total Resistance = 1/{(1/R1)+(1/R2)+(1/R3)..+(1/Rn)}
The Attempt at a Solution
I'm not sure how current is divided up depending on the combination of wires.
First I tried to do 2x Merlin in parallel
Current is the same in components in parallel so:
Rtotal: [itex] (1/2 + 1/2)^-1 = 1 [/itex]
Ploss= I²R
[itex] = (360)^2 [/itex]
= 129600
Total Power loss; 129600x2= 259200 W
This is the same as just figuring out Merlin x1. Would I divide the current by 2 if I did 2x Merlin in series?
Also say I tried doing:
1x swan, 1x sparrow, 1x penguin
I have no idea what to do with currents. Add them together? Divide them up?Thanks for your help.