Working of Electric Battery

Electric battery, as a portable sources of electric power are at the foundation of convenience and sustainability.

Electric cell – A device that converts chemical energy into electrical energy.

Components of Electric Cell

Electrode – It is a metal plates in the cell where cathode is the positively charged electrode, the one to which electrons arrive, while anode is the negatively charged electrode, which ‘supplies’ electrons.
Electrolyte – It is a liquid or gel that contains ions which allows the flow of electric charge between the electrodes.
Separator - It is a barrier that prevents the 2 electrodes from touching and shorting out the cell.
Wire – The 2 metal electrodes are connected by a wire.

Principle – It uses redox reactions to produce an electric current which is combination of both oxidation (release of electrons) and reduction (consumption of electrons) reaction.
Working – A voltaic, or galvanic cell consists of 2 half-cells where each half-cell is made of a metal electrode immersed in an electrolyte of that metal.
- For example, a zinc electrode in zinc sulphate and a copper electrode in copper sulphate.

The zinc oxidises at the anode, releases 2 electrons into the electrode and Zn2+ ions goes into the electrolyte.
Copper ions (Cu2+) from the copper sulphate deposit onto the cathode, which now requires 2 electrons thus copper reduces at the cathode.
So, the wire connecting the electrodes transports 2 electrons from anode to cathode.
An external circuit connected to the wire can draw the electron flow for various applications.

An electric battery is a combination of electric cells.

Source:

Join Our Telegram

Centre-State Disputes-Federal Issue

Worldwide Governance Indicators (WGI)

Formation Day

03 Dec, 25
SHARE

On 1st November, eight Indian states—Andhra Pradesh, Chhattisgarh, Haryana, Karnataka, Kerala, Madhya Pradesh, Punjab, and Tamil Nadu—along with five Union Territories—Andaman and Nicobar Islands, Chandigarh, Delhi, Lakshadweep, and Puducherry—celebrate their Formation Day. This date marks an important milestone in India

Turtle (Kachhua) Wildlife Sanctuary

02 Dec, 25
SHARE

The Turtle Wildlife Sanctuary, also known as the Kachhua Sanctuary, is located in the Varanasi district of Uttar Pradesh. It is recognised as India’s first freshwater turtle wildlife sanctuary, established to conserve endangered turtle species and support the ecological health of the Ganga River. Location and Extent The sanctuary co

Introduction of AI and Computational Thinking (CT) in

02 Dec, 25
SHARE

The Ministry of Education plans to introduce Artificial Intelligence (AI) and Computational Thinking (CT) from Class 3 onwards in the 2026–27 academic year. This initiative is part of the National Curriculum Framework for School Education (NCF-SE) 2023 and aligns with the National Education Policy (NEP) 2020. The aim is to prepare student

Sal Tree

02 Dec, 25
SHARE

Scientists from the Environment Department of Himachal Pradesh University (HPU) in Shimla have recently revealed that the Sal tree (Shorea robusta) is the most effective natural air purifier for combating rising pollution levels. Their findings highlight the tree’s superior capacity to trap dust, absorb gases, and cleanse the air compared

US Resumes Nuclear Weapon Testing

02 Dec, 25
SHARE

The President of the United States has ordered the resumption of nuclear weapon testing after a gap of 33 years, the last test being in 1992. This decision marks a significant shift in global nuclear policy and has far-reaching implications for geopolitics, the environment, and international security. Status of Global Nuclear Weapon Testing