5000watt how many amp I use

<I moved this to it's own thread>

P (Watts) = Volts * Amps and some other varients using R

So, we can't answer your question without knowing two of the following V, I or R. You gave us I. We need one more.

Warning: It is a special case that works 99% of the time.

5000watt how many amp i use

If it's a 120 volt circuit, you would need

\frac{5000}{120} = 41.7 \, amp

If it's a 240 volt circuit, you would need

\frac{5000}{240} = 20.8 \, amp