In 1907, Mr. Poulsen discovered dc bias.
How did adding dc bias to the input signal solve the distortion problem for magnetic recording?
A. It moved the input signal away from the step in the magnetism curve
B. It moved the input signal directly onto the step in the magnetism curve
C. It moved the output signal directly over the step in the magnetism curve
D. It straightened the step in the magnetism curve
Show Answer
Answer: A
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