What is the definition of electric current?
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An electric current is the rate of flow of electric charge past a point or region. An electric current is said to exist when there is a net flow of electric charge through a region. Electric charge is carried by charged particles, so an electric current is a flow of charged particles
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ᴇʟᴇᴄᴛʀɪᴄ ᴄᴜʀʀᴇɴᴛ ɪs ᴛʜᴇ ʀᴀᴛᴇ ᴏғ ғʟᴏᴡ ᴏғ ᴇʟᴇᴄᴛʀᴏɴs ɪɴ ᴀ ᴄᴏɴᴅᴜᴄᴛᴏʀ. ᴛʜᴇ sɪ ᴜɴɪᴛ ᴏғ ᴇʟᴇᴄᴛʀɪᴄ ᴄᴜʀʀᴇɴᴛ ɪs ᴛʜᴇ ᴀᴍᴘᴇʀᴇ.
Based on the ability of the material to conduct electricity, materials are classified into conductors and insulators.
Conductors: These materials allow the free flow of electrons from one particle to another.
- Examples of conductors : Human body, aqueous solutions of salts and metals like iron, silver and gold.
Insulators: Insulators are materials that restrict the free flow of electrons from one particle to another.
- Examples of Insulator : Plastic, Wood and Glass.
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