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Related Concept Videos

Batteries and Fuel Cells03:12

Batteries and Fuel Cells

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A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
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A conductor needs to be a component of a path that creates a closed loop or full circuit to have a continuous current flowing through it. A current starts to flow if an electric field is created inside an isolated conductor that is not part of a full circuit. The conductor quickly develops a net positive charge at one end and a net negative charge at the other. These charges generate an electric field opposite the direction of the applied electric field, which reduces the current. Eventually,...
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A Faraday disk dynamo is a DC generator, producing an emf that is constant in time. It consists of a conducting disk that rotates with a constant angular velocity in the magnetic field, perpendicular to the disk's plane. The rotation of the disk causes a change in magnetic flux, which induces an emf, causing opposite charges to develop on the rim and in the center of the disk. The polarity of the induced emf can be determined by the direction of the magnetic field and the direction of the...
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Multiple Voltage Sources01:25

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Generally, a single battery is not enough to power some devices. In such cases, batteries can be combined in two ways: in series or in parallel.
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Batteries are...
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Voltaic/Galvanic Cells02:47

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Spontaneous Chemical Reactions
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
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The Earth is a good conductor of electricity, and it is so big that it can be considered an infinite source or sink of charges. It can easily exchange charges with any matter.
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Related Experiment Video

Updated: May 2, 2026

Three-electrode Coin Cell Preparation and Electrodeposition Analytics for Lithium-ion Batteries
10:41

Three-electrode Coin Cell Preparation and Electrodeposition Analytics for Lithium-ion Batteries

Published on: May 22, 2018

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Batteries not included.

F Hand1, D McDowell1, J Gillick1

  • 1Department of Paediatric Surgery, Children's University Hospital, Temple St, Dublin 1.

Irish Medical Journal
|March 6, 2014
PubMed
Summary

Button battery ingestion in children can cause serious esophageal damage. Prompt diagnosis and treatment are crucial to prevent severe complications and ensure positive outcomes.

Area of Science:

  • Pediatric Gastroenterology
  • Emergency Medicine
  • Otolaryngology

Background:

  • Button batteries (BB) are common household items that pose a significant ingestion risk to young children.
  • Esophageal lodgement of ingested button batteries can lead to severe mucosal injury and complications.

Observation:

  • Two pediatric cases of button battery ingestion with esophageal lodgement are presented.
  • Case 1: Timely diagnosis and treatment resulted in no sequelae.
  • Case 2: Delayed diagnosis led to both early and late complications.

Findings:

  • The critical importance of prompt diagnosis and appropriate management of suspected button battery ingestion in children is demonstrated.
  • Delayed intervention significantly increases the risk of severe esophageal damage and long-term adverse effects.

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Implications:

  • Highlights the need for heightened awareness among parents and healthcare providers regarding the dangers of button battery ingestion.
  • Emphasizes the necessity of rapid diagnostic and therapeutic protocols for esophageal button battery foreign bodies in pediatric patients.
  • Underscores the potential for severe morbidity and mortality if button battery ingestion is not managed effectively.