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Nathan Electricity Assessment

Recently, we have been learning about electricity and here is all that we’ve learnt about.

Current electricity is measured in two ways: current and voltage. Current is the flow of electrons, measured in amps and with an ammeter. Voltage, on the other hand, is how much energy the current is carrying, measured in volts and with a voltmeter.

These are circuits made in PHET. The left one shows a series circuit, and the right one shows a parallel circuit. With the same current and voltage, in theory, the parallel circuit’s bulbs should shine brighter. This is because in parallel circuits, voltage isn’t split between the different bulbs as long as they aren’t on the same pathways. On the other hand, voltage in series circuits, if there’s more than one bulb, is split between the two bulbs. Current works the complete opposite, the amps being split between two pathways in a parallel circuit, and stays the same in a series circuit, Visualise it like this: the circuit is a river, and parallel circuits split the river into different pathways. The amps are like the amount of water, being split between the different pathways but the voltage is like the speed, staying the same even while splitting into separate pathways.

 

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