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I got the power...resistance and power!

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by

Harvey Buckle

on 24 April 2018

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Transcript of I got the power...resistance and power!

I've got the power...resistance and power!
Starter
Let me see them homeworks
Electrical resistance
Resistance is measured in ohms. It can be calculated from the potential difference across a component and the current flowing through it. The total resistance of a series circuit is the sum of the resistances of the components in the circuit.

Resistors, bulbs and buzzers produce different resistances.
Aim
To understand the idea of electrical resistance
To know effect of resistance
To know that components can be resistances
To construct a circuit
To calculate power
Power!!
Listen to Mr Harvey
Or in other words
Resistance
There is a resistance to the flow of an electric current through most conductors.

The resistance in a wire increases as:

The length of the wire increases
The thickness of the wire decreases
Now...calculate some power!!!
Full transcript