Current and resistance

Electric Current


The direction of current flow is defined to be in the direction of positive charge flow
Conventional current flows from positive to negative, or from high potential to low potential
Current depends on the velocity of the moving charges, which are generally electrons




Resistance


Resistance is what limits current
If not for resistance, charges would accelerate indefinitely, continually increasing current
Resistance can be thought of as “rocks” in the “pipe” (wire) through which “water” (charge) flows as it is forced by a “pump”
Resistance is caused by collisions between charge carriers (usually electrons) and obstructions in the wire




Resistivity


Expect ρ to depend on any parameter used to describe a material, but temperature, T, is an important one.

Temperature coefficient, a, is different for
each material. It can be positive or negative



Loop Rule for Circuits


The sum of changes in the potential (V) encountered in a complete traversal of any loop of a circuit must be zero.





Internal Resistance

Real batteries, or other sources have an internal resistance that affects the amount of current that the device can deliver. The internal resistance is usually designated by the symbol, r.

Dude Looks Like A Lady

Dude Looks Like A Lady lyrics






Cruised into a bar on the shore
Her picture graced the grime on the door
She a long lost love at first bite
Baby maybe you're wrong but you know it's alright
That's right

Backstage we're having the time
of our lives until somebody say
Forgive me if I seem out of line
Then she whippedd out of her gun
tried to blow me away

Dude look like a lady (4x)

So never judge a book by its cover
Or who you gonna love by your lover
Love put me wise to her love in disguise
She had the body of Venus
Lord imagine my surprise

Dude look like a lady (4x)

Baby let me follow you down
Let me take peek dear
Baby let me follow you down
Do me, do me, do me all night
Baby let me follow you down
Turn the other cheek dear
Baby let me follow you down
Do me, do me, do me, sue me

What a funky lady
She like it like it like it like that
He was a lady

Youth Of The Nation

Youth Of The Nation







Last day of the rest of my life
I wish I would’ve known
Cause I didn't kiss my mama goodbye

I didn’t tell her that I loved her, how much I cared
Or thank my pops for all the talks
And all the wisdom he shared

Unaware, I just did what I always do
Everyday, the same routine
Before I skate off to school

But who knew that this day wasn’t like the rest
Instead of taking a test
I took two to the chest

Call me blind, but I didn’t see it coming
Everybody was running
But I couldn’t hear nothing

Except gun blasts, it happened so fast
I don’t really know this kid
Even though I sit by him in class

Maybe this kid was reaching out for love
Or maybe for a moment
He forgot who he was
Or maybe this kid just wanted to be hugged
Whatever it was
I know it’s because

We are, We are, (We are) the youth of the nation
We are, We are, (We are) youth of the nation
We are, We are, (We are) the youth of the nation
We are, We are, (We are) youth of the nation

Little Suzy, she was only twelve
She was given the world
With every chance to excel

Hang with the boys and hear the stories they tell
She might act kind of proud
But no respect for herself

She finds love in all the wrong places
The same situations
Just different faces

Changed up her pace since her daddy left her
Too bad he never told her
She deserved much better

Johnny boy always played the fool
He broke all the rules
So you would think he was cool

He was never really one of the guys
No matter how hard he tried
Often thought of suicide

It’s kind of hard when you ain’t got no friends
He put his life to an end
They might remember him then

You cross the line and there’s no turning back
Told the world how he felt
With the sound of a gat

We are, We are, (We are) the youth of the nation
We are, We are, (We are) youth of the nation
We are, We are, (We are) the youth of the nation
We are, We are, (We are) youth of the nation

Na, na, na , na, na, na, na, na, na, na
na, na, na

Who’s to blame for the lives that tragedies claim
No matter what you say
It don’t take away the pain

That I feel inside, I’m tired of all the lies
Don’t nobody know why
It’s the blind leading the blind

I guess that’s the way the story goes
Will it ever make sense
Somebody’s got to know

There’s got to be more to life than this
There’s got to be more to everything
I thought exists

Chorus:
We are, We are, the youth of the nation
We are, We are, youth of the nation
We are, We are, (We are, we are) the youth of the nation
We are, We are, (We are, we are) youth of the nation
We are, We are, (We are, we are) the youth of the nation
(the youth of the nation)
We are, We are, (We are, we are) youth of the nation
(youth of the nation)
We are, We are, (We are, we are) the youth of the nation
(the youth of the nation)
We are, We are, (We are, we are) youth of the nation
(youth of the nation)

We are...
Youth of the nation
We are...
Youth of the nation
We are...
Youth of the nation
We are...

Always Somewhere

Always Somewhere





Arrive at seven the place feels good

No time to call you today

Encore till eleven then chinese food

Back to the hotel again



I call your number the line ain't free

I like to tell you come to me

A night without you seems like a lost dream

Love I can't tell you how I feel



Always somewhere

Miss you where I've been

I'll be back to love you again

Always somewhere

Miss you where I've been

I'll be back to love you again



Another morning another place

The only day off is far away

But every city has seen me in the end

And brings me to you again



Always somewhere

Miss you where I've been

I'll be back to love you again

Always somewhere

Miss you where I've been

I'll be back to love you again

In The End

In The End

It starts with one thing

I don't know why

It doesn't even matter how hard you try keep that in mind

I designed this rhyme

To explain in due time

All I know

Time is a valuable thing

Watch it fly by as the pendulum swings

Watch it count down to the end of the day

The clock ticks life away

It's so unreal

Didn't look out below

Watch the time go right out the window

Trying to hold on, but didn't even know

Wasted it all just to watch you go

I kept everything inside and even though I tried, it all fell apart

What it meant to me will eventually be a memory of a time when



I tried so hard

And got so far

But in the end

It doesn't even matter

I had to fall

To lose it all

But in the end

It doesn't even matter



One thing, I don't know why

It doesn’t even matter how hard you try, keep that in mind

I designed this rhyme, to explain in due time

I tried so hard

In spite of the way you were mocking me

Acting like I was part of your property

Remembering all the times you fought with me

I'm surprised it got so (far)

Things aren't the way they were before

You wouldn't even recognize me anymore

Not that you knew me back then

But it all comes back to me (in the end)

You kept everything inside and even though I tried, it all fell apart

What it meant to me will eventually be a memory of a time when I



Chorus



I’ve put my trust in you

Pushed as far as I can go

And for all this

There's only one thing you should know (2x) Chorus