Which line in figure "B" shown in the...

Which line in figure "B" shown in the illustration represents the trailing edge of the wave? Illustration EL-0088

🔍 Key Concepts

• In a pulse or square wave, the signal has a "leading" edge when the voltage first jumps from one level to another, and a trailing edge when it returns toward its original level. • Look at Figure B only and distinguish between the vertical transitions and the flat (constant) portions of the waveform. • Think about current or voltage turning ON vs. turning OFF: which edge would correspond to the signal ending or switching back?

💭 Think About

• In Figure B, identify which numbered segments are vertical transitions (edges) and which are flat tops or bottoms of the square wave. • Ask yourself: if this pulse were a radar or digital signal turning ON and then OFF, which numbered segment would represent the moment it turns OFF? • Compare the first vertical jump of each pulse with the return jump later in the same pulse—one is the leading edge, the other is the trailing edge. Which number is on the return jump?

✅ Before You Answer

• Be sure the segment you choose is a vertical edge, not a horizontal flat portion of the waveform. • Confirm that your chosen segment represents the change from the active level back toward the baseline or opposite level, not the initial rise from baseline to active state. • Verify that in a square wave cycle you can clearly see a pair of edges: one for turning ON (leading) and one for turning OFF (trailing); make sure you’re picking the "turning OFF" edge.

🔍 Key Concepts

💭 Think About

✅ Before You Answer