Applied Science AQA/Electric Circuits

Setting Applied context
Electric circuits are found in a huge number of devices. Electrical and electronic engineers are able to alter the properties of an electrical circuit by adding different components.

Exploration of key ideas (must be original text, not C&P) – level checked by AQA
In general, point students towards the approach to take, as opposed to just giving them information.

Circuit Symbols
The circuit symbols that will be used in learning and the production of a circuit are the following picture on the left. This doesn't include the light dependent resistor (LDR), light independent resistor (LIR) or the thermistor.

Calculating : I, V, P, Q, R.
The way that you calculate Current or I, is to use the equation; Q/t (Q being charge, t being time).

An example could be if a hairdryer has a current of 300A and is active for 30 secs, the hairdryer would have a charge of 10c or coulombs.

For Power or P you will use the equation; I*V (I is Current, V is volts).

An example of this would be, a hairdryer uses 300A and 150V.

Concept 4
explanation 4

Study Task
Work to do to understand this topic e.g. research, analysis

Careers and Organisations
Carry out some research into these jobs in this area. (Feel free to add other jobs you find.)

Relevant practical/s
– relating to criteria skills

Exam-style questions
– can we use old AQA qs… e.g. from more than 5 years ago? With Examiner comments

Links
to other sections within this book

to good external websites (including AQA website, wikipedia, relevant applications / companies) - also considering links in spec

References / Bibliography
of recommended text books

including mapped refs to existing books

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