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Electronics and Communication Control Systems Difficulty: Medium

A diac has ___________ terminals. The resolution of an-n-bit D/A converter with a maximum input of 5 V is 5 mV. The value of 'n' is Express the following finite discrete time signal as the difference of two unit step sequences: x[n] = 1, for 0 ≤ n ≤ 5; and 0 otherwise. Let x(t) be a continuous time periodic signal with fundamental period T = 1 seconds. Let {a k } be the complex Fourier series coefficients of x(t), where k is integer valued. Consider the following statements about x(3t): 1. The complex Fourier series coefficients of x(3t) are {a k } where k is integer valued. 2. The complex Fourier series coefficients of x(3f) are {3a k } where k is integer valued. 3. The fundamental angular frequency of x(3t) is 6π rad/s. For the three statements above, which one of the following is correct? The orbital satellites are