Engineering - December 2006

2006-12-08 02:25:26 · 3 answers · asked by ant 2

2006-12-08 02:06:49 · 3 answers · asked by Carlos Juarbe 1

Series circuit connected to a d.c power supply of 12volts

R1 300ohms
R2 480ohms
R3 220ohms

is the total resistance 1000ohms?

is the total circuit supply current, 12/1000=0.012A?

the potential difference in volts across EACH resistor?

R1 300*0.012=3.6v?
R2 480*0.012=5.76v?
R3 220*0.012=2.64v?

3.6+5.76+2.64=12v?

Parallel circuit connected to a d.c power supply of 12volts

how do i calculate the total circuit resistance?
is it 300+480+220=1000ohms?

how do i calculate the total circuit supply current?

is this how to calculate the current through each resistor?
12v/300=0.04A
12v/480=0.025A
12v/220=0.054A

total= 0.119A?

2006-12-08 01:59:25 · 6 answers · asked by Anonymous

2006-12-08 01:52:41 · 2 answers · asked by papa 1

2006-12-08 01:45:29 · 3 answers · asked by shailesh s 1

2006-12-08 01:37:09 · 3 answers · asked by info_ahmad 1

It;s cleat that i have to find a socket (an old halogen light), but i think i have to use some resistances or something. Can someoane give an ideea on how can I do it? Thanks

2006-12-08 01:20:42 · 2 answers · asked by nicos05 1

Any type ef electric motor can be used. I would like to keep the cost under $500. The motor will be run off (2) 12 volt batteries (NRW Extreme Plus CLT XPA 12-55p). I'm not shure what that means but it is said that "that is the best battery". The motor would have to power a 100-200 lb car for 1 hour going about an avrage of 40mph without draining the battey fully dead.

For the specific rules you can go here - http://www.neca-racing.com/documents/siterules.pdf

2006-12-08 01:16:46 · 2 answers · asked by Matt B 1

2006-12-08 01:14:50 · 1 answers · asked by g_kraushaar 1

2006-12-08 01:13:22 · 1 answers · asked by g_kraushaar 1

2006-12-08 01:07:12 · 2 answers · asked by Carlos Juarbe 1

2006-12-08 01:06:46 · 6 answers · asked by Anonymous

Can I use 2 4" channels 1/4" thick spot welded together?
Should I use an I beam. If so what size?

2006-12-08 00:45:16 · 3 answers · asked by biker77bill 2

I'm working on a yig notch filter that uses TTL "active strobes" as latching functions. I understand TTL logic, but I don't know exactly what strobe signals are, so I don't know if the signals I'm looking at are correct or not.

2006-12-08 00:42:34 · 1 answers · asked by nipsy3 2

is the extraction of phenol from wastewater by supercritical carbon dioxide a method of liquid liquid extraction

2006-12-07 23:53:50 · 3 answers · asked by Dj O 1

Would like to know electrical equipments operating 600V and power factor 0.6?

2006-12-07 23:50:10 · 4 answers · asked by Anonymous

I know you're gonna say it's out of excitement, but what if you fell in? I mean, come ON, people- THINK!

2006-12-07 23:32:13 · 10 answers · asked by Anonymous

I need to know exactly how much weight they can lift also how much do they weight?how long is thier life-time?in what temprature they can work?does mosture do any harm to them?for installation , do they need foundation?the exact height and width?

2006-12-07 23:27:00 · 1 answers · asked by Bahram E(IGS TEAM) 1

2006-12-07 23:07:39 · 2 answers · asked by JWKoh 2

2006-12-07 23:02:42 · 2 answers · asked by stan the man 1

can you explain the theroy behind gear trains and there uses?

2006-12-07 23:02:20 · 2 answers · asked by Robert D 2

2006-12-07 22:23:21 · 1 answers · asked by Jay 1

2006-12-07 22:02:44 · 4 answers · asked by RAM K 1

i need to read on generators, please provide a very good and exact website.

2006-12-07 21:40:53 · 2 answers · asked by alomoja 1

what are the generators (with make / model and capacity) available in indian market to run a 7.5 HP pumpmotor

2006-12-07 20:57:25 · 3 answers · asked by Soumit 1

＊When the brake pedal is pressed by driver, the car transmits the force from driver's foot to its brakes by using the leverage and hydraulic principles in the car braking system.

a)What is the aim of using the leverage and hydraulic systems?

b)Pascal’s principle is used in the hydraulic system. State the Pascal’s principle.

c)If the distance from the brake pedal to the pivot is 2 times larger than that from the cylinder to the pivot, and the ratio of the radius of the brake (slave) cylinder to that of the pedal (master) cylinder is 4. How many times of the force of the driver’s leg being magnified to stop the car?

d)Skid marks are produced on the road surface by applying an emergency braking due to the friction between the tyres and the road surface. Explain how the skid marks are made.

e)What happens to the friction if it is raining? Will the stopping distance of the car being affected?

2006-12-07 20:37:31 · 3 answers · asked by Smile ((((( haha ))))) 5

please answer me with some ref. and also send some notes if u have, any specific site for my question. u can also mail me at (arehman381@yahoo.com)
formulas for the design of different die's parts and method for the calculation of press tonnage?

2006-12-07 19:16:25 · 1 answers · asked by mani 1

In a book on minerals I read that quarts crystal was once used to make radio crystals, but when I researced radio old and new I found no knowledge of it. Can you help?

2006-12-07 19:06:29 · 3 answers · asked by Anonymous

recycling of textile west (fibre to fabric ) which will be beneficial to the reuse that west by creating some useful thngs.

2006-12-07 18:44:34 · 3 answers · asked by amar_kondekar 1

2006-12-07 16:49:31 · 3 answers · asked by Charlie 2