Explain why an amplifier’s input AND output impedance characteristics are important and what size is ideal for EACH. What would happen if these values were not ideal?  Also discuss a situation in which you would want matched impedances (that is, output impedance of the first stage equal to input impedance of the second).

Explain the advantages and disadvantages (if any) of having two emitter resistors—one bypassed and one unbypassed—in the swamped common-emitter amplifier circuit shown in the figure below. Be sure to discuss voltage gain, base impedance and stability as part of your answer.

Which diodes are forward biased in the circuit below given the indicated polarity at the secondary of the transformer. (Mark all that apply)

Describe what the importance of this circled number means on a diode data sheet. One or two sentences will do.

When is it recommended to take the Unit Pre-Tests for this course?

What is the following circuit called? What does the following circuit do? (Name 2 things)

Analyze the following code:public class Test {  public static void main(String[] args) {    System.out.println(xMethod(5, 500L));  }  public static int xMethod(int n, long l) {    System.out.println(“int, long”);    return n;  }  public static long xMethod(long n, long l) {    System.out.println(“long, long”);    return n;  }}

How would you use the output of the following circuit?

What is this circuit called? (Say more than summing op amp.)  How many volts would be at the output? ________V

(The Rectangle class) Following the example of the Circle class in Section 9.2, design a class named Rectangle to represent a rectangle. The class contains: Two double data fields named width and height. A no-arg constructor that creates a rectangle with the default values 1 and 2 for the width and height, respectively. A constructor that creates a rectangle with the specified width and height. A method named getArea() that returns the area of this rectangle. A method named getPerimeter() that returns the perimeter. Implement the class. Write a main method that creates two Rectangle objects—one with width 4 and height 40 and the other with width 3.5 and height 35.9. Display the width, height, area, and perimeter of each rectangle in this order. For a hint on this program, please see https://liveexample.pearsoncmg.com/javarevel13e.html.