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Help me with these questions
1. Which will not likely result to a better quantization (a) higher number of PCM bits (b)higher magnitude of step size/resolution (c) more quantization levels (d) higher dynamic range 3.Which statement is true in analog modulation (a) it is used in digital transmission of signals (b) Analog Modulation is used for wireless transmission of analog signals (c) A higher frequency carrier is used to carry the low frequency information into the communication system (d) In analog Modulation, Digital information is encoded as analog signals 4.In Digital companding, which statements are incorrect? (a) the output of the digital compander is a 12 bit binary code (b) the output of the digital compander is compressed 8 bit binary code (c) the input to the digital compander is an analog voltage (d) the input to the digital compander is a 12 bit binary code 5. Which of the following is true about signal signal-to-noise Ratio? (a) SQR increases when the resolution is decreased (b) SQR is inversely proportional with the amplitude of the signal (c) In linear codes, as the amplitude of a sample increases, SQR remains essentially constant (d) As the number of PCM bits increases, the SQR decreases. 6.Which block of the PCM transmission system is used to convert the multilevel PAM samples to a binary PCM Code? (a) DAC (b) Sample and Hold Circuit (c) ADC (d) Digital Compander