Mastering EMC One Level at a Time

LEVEL 4

This page is scheduled to be completed in September 2026.  

These topics are worth reviewing if they were not part of your university education or if you are not completely comfortable with them. Once you've mastered these essential engineering fundamentals, you're ready to move to the next level.

EMC Standards
and Software

EMC Question
of the Week

A small loop magnetic-field probe is placed on a circuit board trace. The trace carries a current with a waveform that looks like a 60-mA, 250-MHz square wave. The magnetic-field probe's loop inductance is 15 nH. When connected to a 50-Ω oscilloscope input, we measure a voltage waveform that looks like 

  1. the current waveform
  2. the current waveform with no DC component
  3. pulses corresponding to positive and negative transitions
  4. a 250-MHz sine wave

Answer to this week's question

Answer to last week's question

A current waveform (square wave) and 4 possible measured waveforms