Udemy - Electric Circuits In Depth Part 1

Description

Following Topics are Covered

Ohms Law

•Resistance , Voltage

•Calculate Current

•What is Voltage Drop

•What is Potential Difference

•Source & load voltages

•Source Impedance

•Line Impedance

•Load Impedance

•Voltage drop across line

•Voltage drop across Source impedance

•Voltage drop across load

•What is Power Loss, I2R Loss

•What is % Voltage Drop

•What is reference / Neutral Voltage

•Concept of Potential difference.

•What will happen if neutral voltage rise

•Concept of Constant Voltage Source

•Concept of Constant Current Source

•Rated Current & Short Circuit Current

•Which is good high or low source impedance merit & De-merit

•Ohm’s law states that the voltage or potential difference between two points is directly proportional to the current or electricity passing through the resistance, and directly proportional to the resistance of the circuit. The formula for Ohm’s law is V=IR. This relationship between current, voltage, and relationship was discovered by German scientist Georg Simon Ohm. Let us learn more about Ohms Law, Resistance, and its applications.

•Most basic components of electricity are voltage, current, and resistance. Ohm’s law shows a simple relation between these three quantities. Ohm’s law states that the current through a conductor between two points is directly proportional to the voltage across the two points.

•Voltage= Current× Resistance
V= I×R
V= voltage, I= current and R= resistance

•The SI unit of resistance is ohms and is denoted by Ω

•This law is one of the most basic laws of electricity. It helps to calculate the power, efficiency, current, voltage, and resistance of an element of an electrical circuit.

•Ohm’s law helps us in determining either voltage, current or impedance or resistance of a linear electric circuit when the other two quantities are known to us. It also makes power calculation simpler.

•In order to establish the current-voltage relationship, the ratio V / I remains constant for a given resistance, therefore a graph between the potential difference (V) and the current (I) must be a straight line.

•It is the constant ratio that gives the unknown values of resistance,

•For a wire of uniform cross-section, the resistance depends on the length l and the area of cross-section A. It also depends on the temperature of the conductor. At a given temperature the resistance,

•A series generally means connected along a line, or in a row, or in an order. In electronics, series resistance means that the resistors are connected one after the other and that there is only one path for current to flow through.

•Individual resistance add up to the total circuit resistance

•Current through the circuit is the same at every point.

•Individual voltages throughout the circuit add up to the total voltage.

•There are many different ways to organize a parallel circuit. In the practical world, most of the wiring is done in parallel so that the voltage to any one part of the network is the same as the voltage supplied to any other part of it.

•The reciprocals of all the individual resistances add up to the reciprocal of the total circuit resistance.
1/RT = 1/R1 + 1/R2 + 1/R3 …

•Voltage through the circuit is the same at every point.

•Individual current draws throughout the circuit add up to the total current draw.
Who this course is for:

Student, Engineer, Professionals

Requirements

Basic Understanding

Last Updated 11/2020

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