Here you see the circuit board that I passed around in class one day, the control...
Here you see the circuit board that I passed around in class one day, the control board from my microwave oven. The large white square with th red and green coils is a power transformer that takes in 120 volts AC and produces 24 volts AC to operate the circuits. Suppose there are 50 loop of wire in the red secondary coil. How many loops would you expect in the green primary coil? QUESTION 8 On that same circuit, to the left, you see three small capacitors, standing upright with shiny tops. Each of them has a rated capacitance of 10 uF but an actual capacitance of 9.87 uF. What is its capacitive reactance, Xc, in ohms, at 60.0 Hz? Express your answer rounded to the nearest whole number. QUESTION 9 Older radios used an inductor with a fixed value and a variable capacitor to tune into a particular radio station, Suppose you wanted to listen to the news on WKSU, with a frequency of 89.7 MHz (that's megahertz) on a radio with a 4.03 pH (that's microhenry) inductor. What capacitance, C, in pF (that's picofarads, or 1012 F, would resonate with that inductor at that frequency? Express your answer in normal notation, in picofarads. QUESTION 10 Please calculate the speed of light to the nearest whole number. You will need to recall that the magnetic permeability of space, po is defined as exactly 4m x 107 Tm/A, and look on Wikipedia to find the value of the electric permittivity of space, to to nine digits.