The rise time (tr) is the time it takes for a pulse to rise from its point up to its point. The fall time (tf) is the length of time it takes to fall from the to the point.

The rise time (tr) is the time it takes for a pulse to rise from its �

1.	The rise time (tr) is the time it takes for a pulse to rise from its point up to its point. The fall time (tf) is the length of time it takes to fall from the to the point.
A.	10%, 90%,90%, 10%
B.	90%, 10%,10%, 90%
C.	20%, 80%,80%, 20%
D.	10%,70.7%,70.7%,10%
Answer» B. 90%, 10%,10%, 90%

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The rise time (tr) is the time it takes for a pulse to rise from its point up to its point. The fall time (tf) is the length of time it takes to fall from the to the point.

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