Electrical Engineering Answers

The power drawn by a resistive coil made of copper wire is 220 W at 100 V and 20 °C. Calculate the power consume by the coil at 115 V and 100°C. The temperature coefficient of resistance at 20°C is 0.00393. (include step-by-step procedures)

Task 1: You are to design a 4-bit arithmetic unit that consists of a 4-bit adder/subtractor circuit. The arithmetic unit takes as inputs two 4-bit numbers (A and B) and one control input (M) add/subtract selector that selects the type of operation the unit will perform. When the input control is ‘0’, the input numbers are added. When it is set to ‘1’, the two input numbers are subtracted (A - B).

Task 1: Two 4-bit Adder/Subtractor Circuit: Design and construct a 4-bit adder/subtractor circuit. Draw the produced circuit.

Solve the differential equation of the following linear differential equation. Show complete solution.

x dy/dx + y = x^3

Using the 74LS153 IC, DIP switches and an LED, draw and construct the 4-to-1 line MUX. 

By using the 74LS139 IC, DIP switches and 4 LEDs, draw and construct the 2-to-4 line decoder

PC = 41, DR = 1206

Now perform the below given task 

AR  PC

M[AR] DR

IR M[AR]  

Explain the contents of the memory after the execution of second instruction. 

If PC = 789 H , how CPU will fetch the instruction(binary code) from memory using common bus system explain in detail. 

The hot resistance of an incandescent lamp is 10 ohms and the rated voltage is 50 V. Find the series resistance required to operate the lamp from an 80 V supply. (include step-by-step procedures)