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Ohm's law (George Simon Ohm)
There are 3 main quantities in electrical i.e Voltage, Current & Resistance.
Ohm's law formula used to calculate relationship between voltage, current & resistance in an electrical circuit (V=I×R).
Ohm's law states that:- The current flowing to the linear conductor is directly proportional to potential difference between two ends of the conductor when temperature remain constant.
Statment 2:- The current flowing through a conductor is directly proportional to the voltage & inversely proportional to the resistance.
Meaning Of V=I×R:- Electrical current is directly proportional to the voltage & inversely proportional to the resistance.
V↑ I↑ & R↑ I↓
Derivation for Ohm's Law:-
R∝L
R∝1/A
R∝L/A
R=⍴L/A
Formulas for Ohm's Law:-
V=I×R, I=V/R, R=V/I
Basic Of Electrical Engineering
* Electricity:- There is a nucleus, inside it there are protons and neutrons and outside it there is electrons orbiting us this cycle is known as electricity.
*Current (I):- An electric current is rate of flow of electric charge. Current always flow from negative to positive.
SI Unit:- Ampere (A)
*Voltage (V):- Voltage is the difference in charge between two points.
In other way, we can say that pressure applied to flow the current.
SI Unit:- Volt (V)
SI Unit:- Ohm (Ω)
*Inductance (L):- It opposes the change in electric current.
SI Unit:- Henry (H)
*Capacitance (C):- It is a dielectric medium, which used to store the electric charge in form of DC.
SI Unit:- Farad (F)
*Conductor:- A substance by which electricity can passes easily is called conductor.
Example:- Copper, Aluminium, Silver, Gold
*Insulator:- A substance by which electricity cannot passes easily is called insulator.
Example:- Mica, Glass, Wood, Paper
Transformer: It is an electrical static device that can step up & step down voltage & current without changing frequency. ...
