In a 100 kHz four-stage frequency divider, each stage divides the frequency by 2. Normally, the output frequency of the fourth stage would be 100 kHz / 2^4 = 6.25 kHz. However, if the CLEAR input to stage two is LOW, it will reset stage two, preventing it from toggling and effectively stopping the division at that stage. As a result, the output frequency of the fourth stage will be 50 kHz, as only the first stage and the second stage (which is held at a constant state) are functioning.
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