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Unformatted text preview: Between t=0 and t=1 second perform an FFT on the function and plot the magnitude versus the frequency. Now repeat using more values of the function (how many will you need?). Describe and explain differences between the two plots. If the signal is sampled at a 5/10/10 Problem 5 For the function provided in Problem 4, a sampling rate of 30 Hz is taken. Determine the Nyquist and alias frequencies that result. 5/10/10 Problem 6 A Wheatstone bridge is used to determine accurately the value of an unknown resistance Ra. If upon initial null balance R1 is 127.5, and if when Rb and R2 are interchanged, null balance is achieved when R1 is 157.9, what is the value of the unknown resistance Ra? Problem 7 If a resistive element in a Wheatstone bridge measures 750, the other elements are all 500, and the bridge excitation is 10 V, what will be the measured voltage across the bridge?...
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 Spring '10
 Hoopes

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