Voltage and Current Source foe Circuits and Networks
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This document discusses voltage and current sources. It defines voltage as potential difference between two points in an electrical field and current as the flow of electric charge. Energy sources are categorized as either voltage sources or current sources. Voltage sources produce an electromotive force that causes current to flow independently of current. Current sources have infinite output resistance so current flow is independent of voltage. Ohm's law relates voltage, current, and resistance. Resistors oppose current flow. Kirchhoff's laws state that the sum of currents at a node is zero and the sum of voltages around a loop is zero.
Voltage and Current Source foe Circuits and Networks
- 1. VOLTAGE and CURRENT Source BY Ketan Nayak -140413117005 Nirmalsinh Gohil-140413117003
- 2. INDEX INTRODUCTION CURRENT VOLTAGE Energy Sources Voltage Source -Different Voltage Source -Facts About Voltage Source Current Source
- 3. Current and Voltage Relation (OHM’s Law) Resistors Laws of Current Laws of Voltage
- 4. Introduction Current and Voltage Source is the Basic Components of the Electronic Circuit. Current and Voltage is Most Essential Factor for the Operation of any Circuit. Before Knowing about the Current and Voltage Source we must know about the Voltage and Current.
- 5. CURRENT Current is Defined as the Flow of the Electric Charge.. Current is Basically Denoted by Symbol I. The Unit for the Current is A or ampere. SI Unit of Current is Coulomb/Second Measuring Element used for Current is Ammeter.
- 6. VOLTAGE Voltage is a Potential Difference between Two Points of an Electrical Field. It is Denoted by Symbol V The Unit for Measurement of Voltage is Volts. SI Unit for Voltage is Joule/Coulomb Measuring Element for Voltage is Voltmeter.
- 7. Energy Sources According to the Terminal Voltage-Current Characteristics, Electrical energy Sources are Categorized into two Parts. 1. Voltage Source 2. Current Source
- 8. VOLTAGE SOURCE The Voltage Source is a Two Terminal Element in which the Voltage is completely independent of the Current. The Representation of Voltage Source is Done by the Fig Shown Above.
- 10. Facts about Voltage Source A Voltage source produces an Electromotive Force (e.m.f.) which causes a current to flow within a circuit Unit of e.m.f. is the volt a volt is the potential difference between two points when a joule of energy is used to move one coulomb of charge from one point to the other Real voltage sources, such as batteries have resistance associated with them In analysing circuits we use Ideal Voltage sources we also use controlled or dependent Voltage sources
- 11. Current Source We also sometimes use the concept of an Ideal Current Source Unrealizable, but useful in circuit analysis can be a fixed current source, or a Controlled or Dependent current source While an ideal voltage source has zero output resistance, an ideal current source has infinite output resistance.
- 12. OHM’s Law The Relationship between Voltage and Current is Given by OHM’s Law. Constant of Proportionality is Resistance R Hence Current through a Resistor causes power dissipation IV IRV R VI I V R IVP R V P 2 RIP 2
- 13. Resistors The Components used to Oppose the Flow of Current through it is Called Resistor. And the Property of a Material to Oppose Current is called Resistance.
- 14. Law of Current At any instant, the algebraic sum of all the currents flowing into any node in a circuit is zero If currents flowing into the node are positive, currents flowing out of the node are negative, then 0I
- 15. Law of Voltage At any instant the algebraic sum of all the voltages around any loop in a circuit is zero If clockwise voltage arrows are positive and anticlockwise arrows are negative then 0V
- 16. Thank You