Introduction of Current Electricity | Physics
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The document discusses the introduction to current electricity, covering its definition, types (static and current electricity), and key scientists in the field. It explains that static electricity arises from friction and current electricity results from the flow of charged particles in a circuit. Additionally, it outlines essential circuit parameters such as voltage, current, and resistance, along with Ohm's law.
Introduction of Current Electricity | Physics
- 2. Contents Electricity Types of electricity Static electricity Scientists in the field of electricity Current electricity Parameters in a circuit
- 3. Electricity • Atoms consists of protons, neutrons and electrons. These electrons move around the nucleus of the atom. Electricity is produced due to the movement of electrons.
- 4. Types of electricity • There are two types of electricity- Static electricity and Current electricity. • When two materials are rubbed together static electricity occurs. Lightning is static electrical. Benjamin Franklin conducted the kite experiment and realized that lightning is static. • Current electricity is due to the flow of charged particles in a circuit.
- 6. Scientists in the field of electricity • William Gilbert - Electromagnetism • Benjamin Franklin – Lightning is electrical • Alessandro Volta – Electric battery- volt, which is unit of voltage • Michael faraday – Electromagnetic induction • Thomas Alva Edison – Electric bulb – DC system • Nikola Tesla – AC system • Andre Marie Amp –Unit of current, amp • Georg Simon ohm –Ohm’s law and unit of resistance, ohm
- 7. Current Electricity • A circuit which is closed loop through which current flows. • It consists of conductors (wire), switch, load and a power source.
- 8. Parameters in a circuit • Voltage- Potential difference between two point in a circuit. • Current- I = Q / t, where Q is the charge and t is the time. • Resistance- restriction to the flow of current. • Ohm’s law States that V = I R
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