I am using sensors with Arduino MEGA 2560. I need to use 1-2 meters of 0.2mm wires to supply sensors and read analog outputs from them. My question is can these length of wires maintain the 0 Volt, 5 Volt, and 0-5 Volt (for the Analog) so far from the Arduino & the power supply??
Yes.
Dpending on the strength of electrical noice in the neighbourhood various measures might be taken. Run and try!
You'll only get a "voltage drop" across the wire if there is high-current through the wire (Ohm's Law). You can look-up Ohms-per-foot for any particular wire gauge but in most everyday applications we just assume wire resistance is zero.
The Arduino has very high input impedance so the current is low and voltage drop is insignificant.
However as Railroader says, you can get noise pick-up. The noise (random variations in the readings) will be worse with longer wires, unshielded wires, and high-impedance sensors. Noise can be reduced with a capacitor or you can use software smoothing/filtering.
Hi Alex5678,
I´ve used a 6 meter UTP cable to connect HC04 sensors to Arduino Uno. Two wires for power, two for data. Everything worked perfectly. Hope it helps.