ELECTRICITY ϟ by Janina Ahadi https://padlet.com/janinaahadi/electricity Everything you needa know about electricity. en-us 2016-08-11 01:55:51 UTC 2023-10-14 13:47:21 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Lightdecrease.png ELECTRIC CURRENT ? janinaahadi https://padlet.com/janinaahadi/electricity/wish/117956393 ➹ A rate of flow of electric charge past a given point in a circuit

◦ Current flows from the positive terminal to the negative terminal
◦ Ammeter : connected in series
◦ ampere/amps (A) or (coulombs/sec)
 
Q= charge (C)
I=  current (A)
t=  time (s)]]> 2016-08-11 02:08:31 UTC https://padlet.com/janinaahadi/electricity/wish/117956393 janinaahadi https://padlet.com/janinaahadi/electricity/wish/119001946 2016-08-20 04:03:58 UTC https://padlet.com/janinaahadi/electricity/wish/119001946 HOW DOES IT FLOW? janinaahadi https://padlet.com/janinaahadi/electricity/wish/119002039
1) ELECTRON FLOW : Movement of electrons from the negative to the positive terminal of an electric source.
2) CONVENTIONAL CURRENT: Flow of positive charges from the positive terminal to the negative terminal of an electric source.]]> 2016-08-20 04:11:01 UTC https://padlet.com/janinaahadi/electricity/wish/119002039 ELECTROMOTIVE FORCE (EMF) janinaahadi https://padlet.com/janinaahadi/electricity/wish/119002255 ➹ Work done by a source in driving a unit charge around a completed circuit

◦ volt (V) or joules per coulomb (J/C)

E= e.m.f (V)
W= work done (J)
Q= charge (C)]]> 2016-08-20 04:25:10 UTC https://padlet.com/janinaahadi/electricity/wish/119002255 POTENTIAL DIFFERENCE  janinaahadi https://padlet.com/janinaahadi/electricity/wish/119002536 ➹ Amount of electrical energy converted to other forms of energy when each unit charge passes through a component.

◦ Component can be light bulb, resistors, variable resistors, etc.
◦ volt (V)]]> 2016-08-20 04:46:47 UTC https://padlet.com/janinaahadi/electricity/wish/119002536 RESISTANCE janinaahadi https://padlet.com/janinaahadi/electricity/wish/119002603 ➹ Ratio of potential difference applied to the current
➹ measure of how difficult it is for an electric current to pass the conducting materials]]> 2016-08-20 04:51:29 UTC https://padlet.com/janinaahadi/electricity/wish/119002603