What is Electricity?
Electricity is a fundamental form of energy resulting from the movement of electric charges. It is characterized by the flow of electrons through conductors such as wires.
★ Electricity powers various devices and systems, enabling them to perform functions like generating light, producing heat, and operating machinery.
★ It is a crucial aspect of modern life and technology, with applications ranging from powering homes and appliances to driving electronic devices and industrial processes.
What is an Electric Charge?
Charge is a fundamental particle in an atom. It may be positive or negative.
★ Like charges repel each other.
★ Unlike charges attract each other.
★ Coulomb (C): S. I. unit of charge
★ 1 Coulomb charge = Charge present on approx. 6 x 10^18 electrons
★ Charge on 1 electron = Negative charge of 1.6 x 10^-19 C
i.e. Q = ne
Where, Q = Charge (total)
n = No. of electrons
e = Charge on 1 electron
Electric Current and Circuit
Electric current is important because it powers technology, helps keep us safe, and makes life more convenient. It also helps distribute energy where it's needed.
Circuits, which are the pathways that control the flow of electric current, are very important too. They are used in electronics, medical devices, transportation, research, and efforts to protect the environment.
Circuits are essential to modern life, affecting almost everything we do every day.
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