Homework * Using the superposition theorem, find vo in the circuit of Figure 4.2.3. 3 0 50 5 A 12 V Figure 4.2.3 Answer: 7.4 V. * Use superposition to find vr in the circuit of Figure 4.2.6. ww

Geoffrey is building an electronic circuit on a breadboard. He needs to supply his circuit with a 1500 ohm resistance. But he does not have any 1500 2 resistors on hand. All he has is a box of 1000 2 resistors. (a) How can Geoffrey produce the desired resistance of 1500 using only 1000 resistors? Draw a schematic diagram and show that the equivalent resistance is 1500 2. Try to minimize the number of required resistors. (b) What is the impedance of the 1500 2 portion of the circuit?

A - Explain the symbols, operating principles and usage areas of the diodes given below. (Zener diode: photo diode: led diode: opto coupler) B- Draw the voltage trigger circuit and explain its operation. Explain how there is a difference between the voltage quadrant and the tripler

Q4 Find Vo and V1 for the circuit shown in Figure 3.   Q5 Calculate the total resistance between the terminals ‘a’ and ‘b’ shown in Figure 4.