![Extra Class question of the day: phase angle between voltage and current; phase angles of series and parallel circuits - KB6NU's Ham Radio Blog Extra Class question of the day: phase angle between voltage and current; phase angles of series and parallel circuits - KB6NU's Ham Radio Blog](https://www.kb6nu.com/wp-content/uploads/2012/06/ice.png)
Extra Class question of the day: phase angle between voltage and current; phase angles of series and parallel circuits - KB6NU's Ham Radio Blog
![Phase angle calculation time delay frequency calculate phase lag time shift between voltage difference time of arrival ITD oscilloscope measure two signals formula angle current voltage phi phase shift time difference - Phase angle calculation time delay frequency calculate phase lag time shift between voltage difference time of arrival ITD oscilloscope measure two signals formula angle current voltage phi phase shift time difference -](http://www.sengpielaudio.com/PhaseShifting02.gif)
Phase angle calculation time delay frequency calculate phase lag time shift between voltage difference time of arrival ITD oscilloscope measure two signals formula angle current voltage phi phase shift time difference -
![When a series combination of inductance and resistance are conneted with a 10 V, 50 Hz a.c. source, a current of 1 A flows in the circuit. The voltage leads the current When a series combination of inductance and resistance are conneted with a 10 V, 50 Hz a.c. source, a current of 1 A flows in the circuit. The voltage leads the current](https://d10lpgp6xz60nq.cloudfront.net/web-thumb/647479946_web.png)
When a series combination of inductance and resistance are conneted with a 10 V, 50 Hz a.c. source, a current of 1 A flows in the circuit. The voltage leads the current
![Phase angle calculation time delay frequency calculate phase lag time shift between voltage difference time of arrival ITD oscilloscope measure two signals formula angle current voltage phi phase shift time difference - Phase angle calculation time delay frequency calculate phase lag time shift between voltage difference time of arrival ITD oscilloscope measure two signals formula angle current voltage phi phase shift time difference -](http://www.sengpielaudio.com/Sinusoidal%20Wave.gif)