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GCSE Coursework A3b - Select Components and/or Subsystems

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GCSE Coursework:
Intro
A1
A2
A3a
A3b
A4
A5
A6
A7
B1
B2
B3
B4
B5
B6
B7
C1
C2
C3
C4
C5
D1
D2
D3

Compare different ways to solve the problem.

Often there is more than one way to solve a problem.
In this section decide what components or subsystems to use.
Extra marks are available in D3 if you do this well.
State your choices, the advantages or disadvantages.
Make your choice and give reasons.

Driver Circuit: Use a MOSFET or Bipolar Transistor. Advantages and disadvantages. Which to use and why.
Sounder: Use a DC Buzzer, a Piezoelectric Sounder or a Loudspeaker. Advantages and disadvantages. Which to use and why.
Thermistor or Temperature Sensor Chip: Advantages and disadvantages. Which to use and why.
Light Bulb or LED: Advantages and disadvantages. Which to use and why.
Counter - 4017 or D Type Flip Flops: Advantages and disadvantages. Which to use and why.

Here is an example ...

Example Work for A3