What is the time width of an electromagnetic pulse?

• A. PULSE DURATION
• B. PULSE WIDTH
• C. PULSE LENGTH
• D. PULSE PERIOD

Answer: (B)

The time width of an electromagnetic pulse is the duration from when the pulse starts to when it ends—essentially how long the pulse remains above a usable amplitude. This interval is what engineers refer to as the pulse width. It captures the full active time of the pulse itself, including its rise and fall, and is the most direct way to quantify how long the pulse affects a system. Other terms can be ambiguous: pulse period is the time between successive pulses, not the length of a single pulse; pulse length or duration are less standard in this specific context, whereas width precisely describes the single-pulse time span. So the best term for the time width of an EMP is pulse width.