ECT 122 WEEK 2 HOMEWORK

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ECT 122 Week 2 Homework

13.  Calculate the minimum acceptable power rating for the resistor in Figure 3.25a.  6V, R120 ohms

14.  Calculate the minimum acceptable power rating for the resistor in Figure 3.25b.  8V, 16 ohms

21.  Complete the following chart.

22.  Complete the following chart.

23.  Calculate the operating resistance of a 110V, 60W lightbulb.

24.  A television has a 110V input and an average power rating of 180 W.  Calculate the television's average input current. 

31.  Convert the following numbers to engineering notation without the use of your calculator.

32.  Five coulombs of charge pass through a circuit every minute.  What is the value of the circuit current?

33.  Determine the the guaranteed range of values for a resistor with the following color code:

34.  Calculate the minimum allowable setting for the potentiometer in Figure 3.27.  P = 3W, 1/2A switch, R?