Electromagnets

[doodab]

When doing your sums, remember it's 1.68 x 10 ^ -8. That factor of 100 million is quite important.

[PRC1964]

kthxbai to borrow from my 18 year old nephew.

Newspeak is 2xgd

[doodab]

kthxbai to borrow from my 18 year old nephew.

Newspeak is 2xgd

Is he dyslexic? Or does he just have something stuck in his throat?

[PRC1964]

Is he dyslexic? Or does he just have something stuck in his throat?

Worse than that, he's 18.

[doodab]

Worse than that, he's 18.

Is that leet for "works at goldman sachs"?

[doodab]

I have to chuckle when I see that someone left me a -ve rep for my "pointless post" at 1am.

Go to bed you freak!

It's not pointless, the number up above is the resistivity of copper, an essential ingredient in calculating the current through your solenoid and the resulting heat emission. Leaving the aforementioned factor of 100 million out of your calculation causes you to overestimate the resistance of the coil and hence underestimate the current by a large factor. Which means it doesn't work quite as you expect.

If I can save one innocent battery from death it's worth it.

[Churchill]

I have to chuckle when I see that someone left me a -ve rep for my "pointless post" at 1am.

Go to bed you freak!

It's not pointless, the number up above is the resistivity of copper, an essential ingredient in calculating the current through your solenoid and the resulting heat emission. Leaving the aforementioned factor of 100 million out of your calculation causes you to overestimate the resistance of the coil and hence underestimate the current by a large factor. Which means it doesn't work quite as you expect.

If I can save one innocent battery from death it's worth it.

Do you factor in the increase in resistance as the temperature increases?

[doodab]

Do you factor in the increase in resistance as the temperature increases?

I think it's safe to say my mathematical models are not that sophisticated

[Churchill]

I think it's safe to say my mathematical models are not that sophisticated

What about thermal shock?

[doodab]

What about thermal shock?

Calm down man, I've not even got the knack of ohms law yet!