Engineering - January 2007

The voltage drop (v) volts across an inductor of L Henries at time (t)seconds is given by:
v=150e^RT/L
where R = 100ohms and L = 8 x 10^-3 H
a) Find the value of the voltage when t = 80 x 10^-6 s
b) Plot the graph of v against t for t = 0 to t = 400 x 10^-6s.
c) Find the time for the voltage to reach 70V.

2007-01-16 01:20:10 · 1 answers · asked by Anonymous

2007-01-16 01:11:35 · 5 answers · asked by georgina c 2

2007-01-16 00:59:56 · 2 answers · asked by Anonymous

2007-01-16 00:28:30 · 3 answers · asked by salmanbhai11 1

they are tables

2007-01-16 00:27:05 · 9 answers · asked by Anonymous

Direct Current Motors.

2007-01-16 00:18:48 · 3 answers · asked by Anonymous

if its cross-section is a trapiezium, calculate the maximum volume of waste material it can hold when filled up level to its brim.

http://i10.photobucket.com/albums/a121/TurboD15/DSC00507.jpg

do u work out area of trapezium first?

1/2 * sum of parallel sides * height

0.5 * 13 * 5 = 32.5cm squared?

how u work out the volume?

2007-01-16 00:13:10 · 3 answers · asked by boostedz6 1

As in stregthening, flexibility, etc.

2007-01-16 00:07:15 · 2 answers · asked by Heather 3

The topic would be preferrably in the field of structural engineering or earthquake engineering. it can also be in geotechnical engineering.... thanks

2007-01-15 23:56:01 · 1 answers · asked by gracie 1

2007-01-15 23:54:59 · 5 answers · asked by rahul r 1

I need to know about this as I am constructing new home for me.

2007-01-15 22:42:08 · 4 answers · asked by aramaiya 3

I would like to know whether I should cut the ends squarely or at an angle. I would also like to know which glue to use for sticking the ends.

2007-01-15 22:21:41 · 4 answers · asked by Bharat 4

2007-01-15 21:22:47 · 1 answers · asked by Joseph Ebenezer 1

2007-01-15 20:59:45 · 2 answers · asked by majook m 1

If so ,how do these work?
Do you know a brand for these fuses?
(I've heared some fuses have aux contact)

2007-01-15 20:59:24 · 2 answers · asked by engineer 1

2007-01-15 20:57:14 · 5 answers · asked by Galyose 1

Does anyone have a logical explanation for why the skin depth increases as the resistivity of the conductor material is increased? I know the equation, but for some reason, intuitively I think it should be the other way round? Correct me please...

2007-01-15 20:16:13 · 1 answers · asked by Lilliana 5

please suggest effective measures

2007-01-15 18:18:17 · 8 answers · asked by Anonymous

2007-01-15 17:51:08 · 4 answers · asked by shahid k 1

2007-01-15 17:33:48 · 1 answers · asked by Jayasuru L 1

By ptting holes in the silencer core does the power of the bike increase???
usually i hear people saying that they would put holes in the silencer core of the bike and would get more power ... especially in an RX
i somehow feel that only the noise increases and not the power...
please clarify...

2007-01-15 17:26:59 · 4 answers · asked by Anonymous

A.) <
B.) >
C.) _>
D.) _<

2007-01-15 17:10:33 · 6 answers · asked by Landon J 1

The formula for finding area of a triangle is A = ½ bh.  If the base of a certain triangle is 5 in. and the height is 12 in., what is its area?

A.) 120 in.2 (2 is subscript)
B.) 60 in.2
C.) 30 in.2
D.) 240 in.2

2007-01-15 17:09:52 · 5 answers · asked by Landon J 1

A(n) __________________ is any positive or negative whole number or zero.  

A.) integer
B.) rational number
C.) irrational number
D.) real number

2007-01-15 17:07:41 · 13 answers · asked by Landon J 1

A.) -1
B.) -2
C.) 0
D.) 2

2007-01-15 17:06:45 · 8 answers · asked by Landon J 1

2007-01-15 16:58:26 · 1 answers · asked by JOSELUIS S 1

i have to know what is the cake filtration theory...?? urgent~!

2007-01-15 16:39:42 · 2 answers · asked by Zacky I 1

topic that is simple, interesting, no one have done the research about it...

2007-01-15 16:00:30 · 2 answers · asked by sweet_petal 1

2007-01-15 15:41:51 · 14 answers · asked by au197_0 3

2007-01-15 14:44:16 · 4 answers · asked by Anthony I 2