Elec 4 AQA Exam Questions 0.0 / 5 ? ElectronicsA2/A-levelAQA Created by: JoeyCreated 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
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