A numeric system (e.g. a numeric keypad) generates numbers 0 to 9 in binary. You are asked to design combinational logic that outputs a '1' when the number generated from the numeric system is an odd number (1, 3, 5,..) or number 0. Programme of Work 1 Write down the truth table for the circuit. 2 Use Karnaugh maps to minimise the circuit. Note that you have to make use of any "don't care" states to get the minimised form of the circuit

Where did you get 1/2*pi in b

14] Encode Decimal '-124' using Two's Complement. Express your answer in Hex. 15] How much Current is passing through a 470 ohm Resistor that is dropping 3.3 Volts? Express your answer in Decimal with 2 digits of significance.  16] How many Volts are being dropped by a 2.7k Ohm Resistor if it is passing 75uA? Express your answer in Decimal with 2 digits of significance.

Question #3 Imagine you have a Buzzer BZ1 with a resistance of 5600 and two lamps L1 and L2 with a resistance of 2002 each connected in series to a Battery of 6 Volt as shown in the diagram below 6V BZ1 - 560 Ohms. L1 20 Ohms L2-20 Ohms Calculate the power of the Buzzer BZ1, the Lamps L1 and L2 and the power of the Battery