The electric guitar is another member of the guitar family and unlike the classical guitar its strings are made of steel. The electric guitar can have up to 12 strings like the acoustic. To play this guitar people always use a pick but you can also pluck it with your fingers you just won't get the same powerful noise. This guitar has pickups that receive the vibration of the strings and transmit it into a speaker. The common types of pickups are magnetic which is how they sense the vibration in the strings. The sound that the pickups send are to weak for a speaker so you can connect a guitar amplifier to send the signal to the speaker and it will make it sound louder.
This is a picture of a ernie ball electric guitar that has 6 strings.