Is it possible to power 2 servos at 5V using Arduino?

Question

Batteries

Will the Arduino Uno burn out? The arduino itself is powered by an external source of electricity at 7.5 V. The name of the servomotor is Parallax Continious Rotation

Answer 1

See what motors. If low-power type SG90 then you can. In other cases, use a separate power source by connecting the ground

Answer 2

It is possible but pointless, the current strength is not enough to operate the motor, except perhaps some micro servos the size of a coin.

Answer 3

Use a relay or contactor

Answer 4

With the earth probably only.