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Podcast: HVAC School - For Techs, By Techs
Episode: Short #84 - Power Passing vs. Consuming
Description: In this short podcast, Bryan briefly explains why we use a voltmeter to measure "voltage drop" across loads and switches. He also covers some of the differences between passing and consuming power. Many of us are naturals at using voltmeters already. Voltmeters have two leads, and those exist to measure the difference or potential between them. Voltage is a reference to what is going on between the leads; whenever resistance exists, we have a voltage drop. Resistance can sometimes be designed or undesigned. When we think about power passing and consuming, we should note that "...