test.year2.txt (1094B)
1 Lucas standen electronics test 1 year 2 2 3 1)a)i) in book 4 1)a)ii) in book 5 1)a)iii) in book 6 1)b) in book 7 8 2)a) in book 9 2)b) in book 10 2)c) in book 11 2)c)i) in book 12 2)c)ii) in book 13 2)c)iii) in book 14 15 3)a) in book 16 3)b) The red LED will be on as the amp will be outputing 11V (see diagram for workings), which would mean that 17 over the green led and resistor is only 1V which wont be enough to light the LED, however over the red LED and 18 resistor, is 11V which is enough to light the led 19 3)c)i) in book 20 3)c)ii) in book 21 3)c)iii) R2 will recive a higher current than R1 as it has the higher resistance and it is in parralel with R1 22 meaning the current splits between them proportional to resistance 23 24 4)a) in book 25 4)b)i) in book 26 4)b)ii) a ripple counter will move upwards/downwards when the previce dtype has changed state, however a 27 syncrhronos counter will count using a logic system from the clock and other outputs, (avoids propigation 28 delay, and makes all outputs change at the same time whereas an asynchronos counter will change its outputs 29 change at different times) 30 4)c) in book 31 4)d) in book 32 33 34 35