On Fri, 12 Oct 2018 08:23:18 -0400, Keyser Soze
wrote:

I happen to have that info handy because I looked it up last week when I
had to replace a dead microwave oven. Here's how it is figured:

A 1200 watt output microwave takes 10. The typical formula for this is..
P = VI.. I = P/V = 1200 /120 =10 A. Hence, one would think that the
answer is 10 A.. However, this formula applies only for DC current. For
AC current,. P=VI cos (theta). where theta is the phase difference
between V and I.. This phase difference is created by the inductances
inside the microwave oven.

===

Whoo hoo! 'Airree discovered Power Factor, well known to EEs of
course, which is why most high powered AC electrical devices are
rated in KVA instead of KW. For bonus points explain why inductors
create a phase difference between voltage and current.