Elec 4 AQA Exam Questions

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  • Created by: Joey
  • Created on: 28-05-13 12:42
One Way in which Architecture in Microcontroller differs from Pc
A seperate Program Instruction Bus
1 of 10
What is Negative Feedback
When a portion of the output is mixed with the input, to reduce the effect of the input
2 of 10
Where does R0 go on a DAC Circuit
R0 is at the bottom which is least significant and highest resistance
3 of 10
In Mosfet/Motor Circuit which MOSFETs to Turn
Two Right MOSFETs Clockwise / Two Left MOSFETs Anticlockwise
4 of 10
Vision Sensory Systems Used in Robotics
Photodiode/LDR , CCD / IR,UV / Ultrasound, Radio
5 of 10
What values to scan Dot Matrix Vertically
Start with 0 on right and move to left
6 of 10
On a binary number which side is MSB
Left
7 of 10
What is Polling
Continually checking the state
8 of 10
Why might there be difficulty in reading an optical disk
Sensors not aligned, so change at different times, leading to errors
9 of 10
Whats different about a Gray code encoded disk
Only one bit changes at a time so therefore do not have to be accurately aligned
10 of 10

Other cards in this set

Card 2

Front

What is Negative Feedback

Back

When a portion of the output is mixed with the input, to reduce the effect of the input

Card 3

Front

Where does R0 go on a DAC Circuit

Back

Preview of the front of card 3

Card 4

Front

In Mosfet/Motor Circuit which MOSFETs to Turn

Back

Preview of the front of card 4

Card 5

Front

Vision Sensory Systems Used in Robotics

Back

Preview of the front of card 5
View more cards

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