https://padlet.com/morr109301/f64dawh9m5qf For physics en-us 2016-08-17 14:45:10 UTC 2017-05-17 03:54:34 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Bigthunderstorm.png morr109301 https://padlet.com/morr109301/f64dawh9m5qf/wish/118613579 -The Cell is the power source of a circuit and it has two ends:positive and negative. It is represented as two lines, the long one being the positive terminal and the short being the negative terminal
-A switch controls the current in a circuit. It has an opened state, where no current flows. It also has a closed state, where current can flow.
-A voltmeter is a component that is used to measure voltage, it is connected parallel to a component.
-An ammeter measures the current in a circuit, it is connected in a series
-Wires are used to connect the components
-A bulb converts electrical energy to light energy

]]> 2016-08-17 16:21:24 UTC https://padlet.com/morr109301/f64dawh9m5qf/wish/118613579 morr109301 https://padlet.com/morr109301/f64dawh9m5qf/wish/118615334 1.CURRENT
-An electric current is the rate of flow of charge
-Charge flow can be positive or negative
-Measured using Ammeter
-Current=Q/t where Q is charge and T is time
-SI unit is Cs^-1 or Ampere (A)

2.Electric Circuits
-Conventional current movies from positive to negative
-Electron current moves from negative to positive

3.Electromotive force (e.m.f)
-Work done on the electron by the cell to movie or complete the circuit
-emf=workdone/charge=J/C->Volts
-A voltmeter is used to measure emf parallel to the cell

4.Potential difference
-P.d or voltage is the work done by electrons
-emf is for the cells while pd is for components

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