How do I do this?

How do I do this?

Oh, yes. Classic problem. Classic answer.

To do that you first graduate high school and then you will realize: Hey, in high school they taught me how to do all of this, so now I can and don't need to ask strangers on the internet?

Isn't high school just great? That you have teachers that teach you everything? Shit isn't like that after you leave high school. The world changes.

(a) 0

They're asking for a function of t, so they can't be talking about t = 0, right?

These questions are so poorly-worded sometimes.

I just tried 0 and it wasn't the answer.

Rnet=(Ls+2R)||R+R
Iswitch = (V/s)/Rnet = V*(3/(5R)-e^(-(5*R*t)/(2L))/(10R))

Can you explain?

Op still here?

Yes.

Not 100% sure, since it's been some time, but check if this is correct, if not tell me.

If correct, please let me know as well

Where does IsubL = IsubS * R/(2R + R) come from in the third line?

It's a current divider.

Kirchoff (Current split), since it splits

Simplified differently, to give a more "clean" result.

tfw OP wont say if its correct or not

By VsubS you mean the emf, right?

Also, I don't want to submit an answer until I have both answers to submit, in case it counts my empty field as wrong. You didn't solve the second question, right?

Yes, V.s = epsilon.
And no, i did not solve for the switch since i got through my waiting queue.

Shouldn't you be using laplace transformations?

For which of the two questions?

For both I think. Let me get my books and I'll try to type it out if I'm right.

...

Yea, you could laplace it, and then inverse it in the end i guess, but should be right as well?

No reason to.

I took chem and bio in high school. I didn't take physics until college

So this is physics 2 and not some circuits class?