Monthly Archives: July 2011

Capacitor Puzzle Redeux

Posted on July 25, 2011 by

My first blog post discussed the following interview question I received many years ago. You are handed a 1 F capacitor charged to 10 V and two boxes containing uncharged capacitors: one box contains an uncharged 1 F capacitor and … Continue reading →

Posted in Electronics | Leave a comment

Thermistor Mathematics

Posted on July 22, 2011 by

Introduction A common electrical engineering task during the design of a circuit card is designing a way for the circuit to measure its own temperature. Knowing the temperature of a circuit board is important for compensating for component temperature variations … Continue reading →

Posted in Electronics | 2 Comments

Speed of a Meteor

Posted on July 8, 2011 by

Introduction One of my coworkers knows one of my brothers (I have three). My brother and this coworker are friends and their families vacation together. They happened to be at a lake one night in Northern Minnesota together and my … Continue reading →

Posted in Astronomy | 10 Comments