What gauge string you use is all about personal preference. There is no gauge that is "good" for it its what you like and can use comfortably.
That depends on the guitar! On a Tenor guitar there are four strings, on a standard guitar there are six strings, and there are twelve strings on a twelve string guitar.
On a six string guitar in standard tuning it's the second string or the next one over from the (thinnest) high e. The strings from low to high are EADGBE.
In scientific notation, E1 is the E one octave below a standard tuned guitar's thickest string.
For the same gauge designation, yes. "Standard" or "Regular" gauge acoustic strings are .013 to .056. Those would be considered very heavy strings on electric guitar, where "Standard" or "Regular" gauge strings would be .010 to .046.
The lowest string on a guitar is an E .........
The standard tuning for the guitar 1st string is E.
The standard tuning for the 2nd string of a guitar is B.
The standard tuning for the guitar 6th string is E.
The standard tuning for the bottom string of a guitar is E.
The standard tuning for the guitar first string is E.
The standard tuning for the top string of a guitar is E.
The standard tuning for a 6-string guitar is EADGBE, from the lowest to the highest string.
The guitar string sequence for tuning a standard six-string guitar from lowest to highest pitch is E, A, D, G, B, E.
The standard tuning for the B string on an electric guitar is E.
The standard tuning for the low E string on a guitar is E2.
The standard tuning notes for a guitar are EADGBE, starting from the lowest string to the highest string.
For drop G tuning on a 7-string guitar, it is recommended to use a string gauge of .070 for the low G string.