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88,179 results
Current that keeps changing is direction is called alternating current, (AC) whereas the one that never changes its direction is ...
166,807 views
4 years ago
RMS or root mean square current/voltage of the alternating current/voltage represents the d.c. current/voltage that dissipates the ...
76,524 views
3 years ago
We're so excited to be able to share our exams with you! Cheers, Mitch.
17,131 views
When an alternating voltage is applied to a purely resistive circuit, the current can be calculated using Ohm's law. We find the ...
55,967 views
What is the purpose of an inductor? Learn more about how inductors work within a circuit and inductance. See this and over 140+ ...
702,473 views
9 years ago
AC MOTORS AND GENERATORS - Department of Defense 1961 - PIN 29943 - DESIGN, OPERATION, AND USE OF SINGLE ...
403,531 views
13 years ago
AC waveform analysis is not as intimidating as some may think. There is a lot going on in the AC waveform and this video walks ...
173,635 views
Timelapse for prereading of Phys 153 textbook, Modern Physics. Describes sections 31.1 to 31.3. For University of British ...
1,114 views
12 years ago
Phasors are rotating vectors having the length equal to the peak value of oscillations, and the angular speed equal to the angular ...
89,144 views
November 2017: Describe the motion of electrons in AC current. Picture a tube of tennis balls. Direct current is when you take a ...
3,803 views
6 years ago
More videos, animations and simulations on: http://www.cg-physics.org/index.php/en/
3,159 views
When an alternating voltage is applied to a purely inductive circuit, the current lags the voltage by 90 degrees. Let's calculate the ...
85,294 views
When an alternating voltage is applied across a capacitor, the current leads the voltage by a phase angle of 90 degrees.
55,049 views
The power factor represents the fraction of the available power (also called apparent power) that is consumed (also called the true ...
58,477 views
Why do some outlets have a larger slot? Some plugs have one bigger prong, but why don't they all of them? Do you think you ...
446,162 views
LIKE, COMMENT, SUBSCRIBE. The meter can only use to measure AC electricity. This multifunction meter can measure voltage, ...
19,658 views
Let's explore why the alternating current in a capacitor leads the voltage across it by a quarter of a cycle. Khan Academy is a ...
35,417 views
Transformers step up (increase) or step down (decrease) AC voltage using the principle of electromagnetic induction - mutual ...
287,073 views
Let's explore the EMF and flux equations of an AC generator and draw graphs for them. Khan Academy is a nonprofit organization ...
110,020 views
106,000 views
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To calculate RMS value of any function, we first square it, then find the mean value over some time period, and finally take the ...
29,719 views