By Robert Rodriguez,2014-03-16 07:52
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Save your circuit as "Basic-Theory-Circuit1". (b) Parallel circuitWithin the simulator create the following circuit using the circuit symbols shown. ...

    Topic 1.3 Circuit Concepts.

    Learning Objectives:

     At the end of this topic you will be able to;

     recognise standard symbols for components included within the


     apply the current at a junction rule;

     apply the voltage divider rule;

     explain how voltage at a point can be indicated relative to a 0V


     appreciate that resistance is the opposition to current flow and that

    is measured in ohms;

     understand the relationship between current, voltage and resistance

    in qualitative terms;

    VR select and use ;


     recognise that analogue signals are continuously varying and digital

    signals are two state;

     state the power is dissipated when current flows through resistance

    and is measured in watts;

     understand the relationship between current, voltage and power in

    qualitative terms;

     perform calculations involving ; PVI

     recognise and use the following multiple and sub-multiple indicators: p,

    n, µ, m, k, and M.


    GCSE Electronics.

    Unit E1 : Discovering Electronics

    Circuit symbols

    Electronic circuits consist of components (parts) such as lamps, resistors and transistors connected to an electrical supply, e.g. a battery. The connections are wire or strips of a good electrical conductor such as copper. The connections and components must make a complete path, i.e. a circuit.

    Circuits are represented by diagrams in which each part is shown by a symbol. Some examples that you should recognise are shown below are given below.

    Using the circuit symbols above, draw a circuit diagram for a circuit containing a battery, a resistor, two lamps, a switch and an ammeter. 2

    Topic 1.3 Circuit Concepts.

    Electric Current

What is it

    An atom consists of a tiny core or nucleus with a positive (+) electric charge, surrounded by electrons which have an equal negative (-) charge. (see below)

     Electrons (-)

    Nucleus (+)