How much voltage and amps for 2 SG90 servos?
The SG90 servo datasheet is here:
SG90 Servo Datasheet
As you can see, the voltage specification is 4.8 - 6.0 Volts.  But you do NOT want to power this or any other servo via the Arduino.  Servos are quite &quot;noisy&quot; electrically and this can cause instabilities with your Uno.
You want to supply power to the servo directly from a +5V power supply.
I don't see the current draw for this servo specified so you will need to do your own measurements based on the loading of the output shaft.  Be aware that these draw more current with increased load on the shaft.
As far as the control signal, the Arduino Uno can certainly drive it via its PWM outputs.