Do electric meters measure real or apparent power?

[engr.waqas]

Do electric meters measure real or apparent power?

 

[snafflekid]

Mechanical electric meters measure real power. Electronic electric meters measure real power and can also measure reactive power.

I don't know what apparent power is.

 

[FvM]

I don't know what apparent power is.

But it's a well defined property, simply the product of Irms and Vrms. See also:https://en.wikipedia.org/wiki/AC_power