Question

A 12.0 V voltage is applied to a wire with a resistance of 3.50 ohms. what is the magnetic field 0.150 m from the wire?
____x10^____T

Answer 1

@Hero

Answer 2

wats the answer

Answer 3

We got voltage and we have resistance, and we want magnetic field

oh and we're given a distance from the wire as well

Now, do you know any formula to calculate magnetic field, B?

Well, you probably don't. I don't remember it either LOL but I went ahead and pulled it out for you to save time

\(\text{B} =\frac{\mu _{0}\text{I}}{2\pi \text{r}}\)

B is our magnetic field
\(\mu_{0} =4π10^{−7}~\frac{\text{T}\cdot \text{ m}}{\text{A}}\)
I is current
and r is the shortest distance to the wire

Answer 4

We have voltage and we have resistance. Can you calculate the current?
Once you do that, you can simply plug in the current that you found, the constant (\(\mu{0}\)), and r which is 0.150 m

And so it'll be a simple plug and chug

Answer 5

hello

Answer 6

lk

Answer 7

put the answer in ___x10^___ that form

Answer 8

so the answer is 4x10^-6