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Coulometers can be used to determine electric quantities in the direct current circuit, namely the total charge or a constant current. These devices invented by Michael Faraday were used frequently in the 19th century and in the first half of the 20th century. In the past, the coulometers of that type were named voltameters.
A voltmeter is an instrument used for measuring electric potential difference between two points in an electric circuit. It is connected in parallel . It usually has a high resistance so that it takes negligible current from the circuit.
Music videos, including children's music videos, made up a majority of the most disliked uploads to YouTube. "Baby Shark Dance" is the most disliked "made for kids" video, [failed verification] with over 13.3 million dislikes. 2016 showed the most disliked video game trailer, Call of Duty: Infinite Warfare, which stands at over three million ...
Dailymotion, a French video-sharing website, is founded. [19] 2005 April 23 Companies YouTube opens for video uploads, and the first YouTube video uploaded on April 23, 2005, is titled Me at the zoo. [20] Between March and July 2006, YouTube grows from 30 to 100 million views of videos per day. 2006 May 14 Companies
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The official San Diego Zoo YouTube account left a now-pinned comment on the video in 2020, stating that they felt honored being featured in the first-ever YouTube video. [24] As of October 22, 2024, it is the most-liked comment on the platform, with 3.9 million likes.
A modern electrometer is a highly sensitive electronic voltmeter whose input impedance is so high that the current flowing into it can be considered, for most practical purposes, to be zero. The actual value of input resistance for modern electronic electrometers is around 10 14 Ω, compared to around 10 10 Ω for nanovoltmeters. [ 9 ]
The first Avometer had a sensitivity of 60 Ω/V, three direct current ranges (12 mA, 1.2 A, and 12 A), three direct voltage ranges (12, 120, and 600 V or optionally 1,200 V), and a 10,000 Ω resistance range. An improved version of 1927 increased this to 13 ranges and 166.6 Ω/V (6 mA) movement.