Question

help will fan and medal

Answer 1

it is 4MA

Answer 2

@TheSmartOne

Answer 3

\[\color{green}{V = IR \\ = (0.004~\text{A})(3\;000~\Omega)}\]
Solve for V.

Answer 4

how did you convert the units that was the bit I was struggling on can you explain please @ghuczek

Answer 5

any idea how he converted the units @IrishBoy123

Answer 6

and why has he converted the units like this

Answer 7

well 3k means 3000, right?

that's 3000 ohms.

4MA -- not clear what you meant by M, presume you mean m (milli) thus 4/1000 this time. but that's what @ghuczek did.

yes?

Answer 8

sorry its lower case m @Irishboy123

Answer 9

In your question 4 MA wouldn't make sense. I assumed you meant 4 mA. 4MA would not be a good thing for an iPhone!