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ELECTRICITY

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Published in: Physics
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ELECTRICITY,STATIC ELECTRICITY,CURRENT ELECTRICITY,ELECTRIC CHARGE,ELCECTRIC CURRENT DEFINATION, FORMULA DIRECTION AND ALL BESIC INFORMATION, ELECTRIC POTENTIAL ,ELECTRICPOTENTIAL DIFFERENCE

Bhupendra S / Jaipur

8 years of teaching experience

Qualification: B.E (Electronics and Communication), Masters in Physics

Teaches: Mathematics, Physics, Biology, Chemistry, Science

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  1. CLASS-X CHAPTER-12 ELECTRICITY BY MR.BHUPENDRA SINGHAL STUDY ZONE NARAYAN VIHAR,JAIPUR
  2. ELECTRICITY 1 STATIC ELECRICITY 2.CURRENT ELECTRICITY STATIC ELECTRICITY: Charge/free electron can not flow eg: Plastic,rubber & Non metals etc When we rub plastic scale with hair charges deposited on plastic scale and it attract piece of paper. INSULATOR: Not allow to flow charge like plastic, rubber etc CURRENT ELECTRICITY: Charge/free electron can flow eg: Metals & Alloy etc CUNDUCTOR: Allow to flow charge like Iron, Copper, Metals & Alloy etc
  3. TOPIC Electric Charge (Q) Electric Current (l) Potential Difference (V) Ohm's Low Resistance (R) Resistivity (rho) Heating effect of electric current (H) Joules Law Of Heating Application Of Heating effect of electric current Electric Power (P) Electric Energy
  4. ELECTRIC CHARGE (Q) Electric Charge is the physical property of matter that causes it to experience a force when placed in an electromagnetic field. Electric charge can be positive (+q) or negative (-q). Like charges repel each other and unlike charges attract each other. An object with an absence of net charge is referred to as neutral. Smallest possible charge is 1.602176634x10-19 Coulomb. Unit of electric Charge is Coulomb (C)
  5. ELECTRIC CURRENT (l) An electric current is a stream/flow of charged particles, such as electrons or ions, moving through an electrical conductor. It is measured as the net rate of flow of electric charge through a surface or into a control volume T , I - electric current, Q - electric charge, T- time. Direction of flow of electric current is always Positive terminal to Negative terminal. S.l. Unit of electric current is Ampere (A). Electric Current measured by Ameter It connect in series in electric circuit. One ampere is the current flowing through a conductor if I coulomb of charge flows through it in 1 second. IAmpere = 1 Coulomb/ 1 Second
  6. POTENTIAL DIFFERENCE (V) Potential Difference Water is exact the Same in both Tanks SO, water •w•i// Tank A Tank B Since Tank A has higher vvOter revej„ so. water from Tank A to Tank B Tank A Tank B
  7. POTENTIAL DIFFERENCE (V) Electric current will flow through a conductor only if there is a difference in the electric potential between the two ends of the conductor. This difference in electric potential between the two ends of a conductor is called potential difference. The potential difference in a circuit is provided by a cell or battery. The chemical reaction in the cell produces a potential difference between the two terminals and sets the electrons in motion and produces electric current. Potential difference Between two points A and B of a conductor is the amount of work done töiiiöüéäüiiififiä@öfrom A to B. Work done Potential difference = Charge w or V = — The Sl unit of potential difference is volt (V). One volt is the potential difference when 1 joule of work is done to move a charge of 1 coulomb from one point to the other. 1 joule 1 volt = 1 coulomb Potential difference is measured by a voltmeter. It is always connected in parallel across the two point between which the potential difference is to be measured.
  8. ELECTRIC CIRCUIT Electric Circuit Electric Circuit is a continuous and closed path of an electric current. We draw Circuit Diagram for our convenient to understand the electric circuit, it use electric symbols . A schematic diagram of an electric circuit comprising of a cell electric bulb. ammeter and plug key. SIMPLE CIRCUIT Batte ry
  9. ELECTRIC SYMBOLS Connecting wire Lamp or light globe Switch Electric motor Resistor V Voltmeter Electric Variable
  10. ELECTRIC SYMBOLS synvbols 1 cell 2 cens in s 6 c b at-tery I resistor 2 cells in p ara_IIeI 3 cells in p aralIeI 3 resistors pos itive on dens ding on s Oft _AAkÄl_ —».-4_ rhe o stat c on du ctor c o nn e cti_n g c able on.ne cte d light b vari ab sup
  11. OHM'S LAW : Ohms law is a relationship between the potential difference across a conductor and the current flowing through it. Ohm's law statement The current (l) flowing through a conductor is directly proportional to the potential difference between its ends (V) and inversely proportional to the resistance (R) when temperature remains constant. or -R lav Val or or = constant