AC & DC Current. There are two main kinds of electric current, direct current (DC) and alternating current (AC). There are two main kinds of electric.

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Presentation transcript:

AC & DC Current

There are two main kinds of electric current, direct current (DC) and alternating current (AC). There are two main kinds of electric current, direct current (DC) and alternating current (AC). Copyright © 2010 Ryan P. Murphy

There are two main kinds of electric current, direct current (DC) and alternating current (AC). There are two main kinds of electric current, direct current (DC) and alternating current (AC). Copyright © 2010 Ryan P. Murphy

There are two main kinds of electric current, direct current (DC) and alternating current (AC). There are two main kinds of electric current, direct current (DC) and alternating current (AC). Copyright © 2010 Ryan P. Murphy

(DC) Direct Current is a flow of charge always in one direction. (DC) Direct Current is a flow of charge always in one direction. (Batteries) (Batteries) Copyright © 2010 Ryan P. Murphy

(AC) - Alternating Current is a flow of charge back and forth, changing its direction many times in one second. (AC) - Alternating Current is a flow of charge back and forth, changing its direction many times in one second. (Plugs and outlets / household) (Plugs and outlets / household) Copyright © 2010 Ryan P. Murphy

Advantages of AC –Voltage can be raised or lowered –More efficient over long distances Copyright © 2010 Ryan P. Murphy

Advantages of AC –Voltage can be raised or lowered. –More efficient over long distances Copyright © 2010 Ryan P. Murphy

Advantages of AC –Voltage can be raised or lowered. –More efficient over long distances. Copyright © 2010 Ryan P. Murphy

Rockin Quiz! –This is your chance to rock it out in science class so don’t just sit there. At least rock your head or tap your desk etc. –After some intro slides, teacher will call on a student to rock it out on their way to the board. –Student goes to board and touches the picture that represents AC or DC on the AC/DC logo (If using a screen just point and drum the air). –Student will then pick a new student to go to the board as the teacher changes the slide.

Thunderstruck - Play Now!

“DC”

“Its one way!”

“AC”

“It Alternates!”

Is this (AC) Alternating Current, or (DC) Direct Current?

?