An analog signal is sampled at 36 kHz and quantized into

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An analog signal is sampled at 36 kHz and quantized into 256 levels. The time duration of a bit of the binary coded signal is—

1. 5.78 μs
2. 3.47 μs
3. 6.43 ms
4. 7.86 ms

Correct Option: B

Given L = 256 = 2ⁿ which gives n = 8.
Thus 8 bits are required to encode a sample. Sampling rate is 36 kHz.
It means in one second 36 K × 8 = 288 K bits will be sampled. So duration of a bit is

=	1	= 3.47μs
	288 ×10³