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Electronics and Communication Control Systems Difficulty: Medium

From the figure shown below, the Transfer function of the signal flow graph is: Consider the following types of digital voltmeters: 1. Ramp type 2. Dual slope integrating type 3. Integrating type using voltage to frequency conversion 4. Successive approximation type 5. Servo balanced potentiometer type Which of these require a fixed reference voltage at the comparator stage? Consider the following transfer functions: $$\eqalign{ & 1.\,\frac{1}{{j\omega + 1}} \cr & 2.\,\frac{1}{{{{\left( {j\omega + 1} \right)}^2}}} \cr & 3.\,\frac{1}{{\left( {j\omega + 1} \right)\left( {j\omega + 2} \right)}} \cr} $$ The transfer functions which have a non linear phase are: Determine the bandwidth of the FM signal for 5kHz audio signal modulated by a carrier of 50 MHz causing a frequency deviation of 25 kHz? The bode plot is applicable to: