Basic Electrical Engineering 3rd Dec MST

 Basic Electrical Engineering

• Elements of Electrical Circuits:

1) Active Element: - Diode - Transister

Electricity produce or Generate

• Generator 

a) AC Generator

b DC Generator

2) Battery

3) Tranducer:- 

 Piezzo Electrical Tranducer,

LVDT ( Linear Variable Displacement Transducer

4) Solar Cells

( Light to Electric)

Passive Elements

(Electricity Utilize or Consume

• Charge:-  Electric Charge is produced due to flow of electrons Charge can be measured in Coulomb one Coulomb of charge is equal to the charge on 624x10b electrons;

1 Coulomb = Charge of 624x1016 electrons.

Thus, a positive charge of IC of a body means that it has a deficit of 624 x 10 ke power 16 electrons.

• Electric Current: The flow of free electrons is called Electric Current The Strength of Electric Current I is rate of flow of electrons ie. Change flowing per second. 

I = do/dt   The unit of Couvent is Coulomb/see 

or Ampere.

One ambere

of current is said to flow through.a wire at any Section, one coulomb of charge flows in one second.

•  Electric Potential:- The capacity of a charged body to do work is called electric potential.

                          

                               work done

Electric potential = __________

                               charge

The unit of Electric potential is joule/ to coulomb or volt.

• Potential Difference. The difference in the potentials of two charged bodies is colled Potential Difference... The potential Difference between two points is IV if I of workedene po transfering 1 C of charge frore lower potential to higher potential point.

• Resistance: It may due to which it oppose property be defined as pro of o Substan oses the flew of current (ic. electrons) through. The unit of resistance ohm . A Wire is said to have a resistance of le if a botential differente "of IV accross its ends cases IA of current to flow through it.

Important Questions In Yesterday Exam.

1) States and Prove Kirchhoff's Current Law ( KCL ) 

2) States and Prove Kirchhoff's Voltage Law ( KVL )

3) States and Prove Thevenin's Theorem.

4) States and Prove Superposition Theorem.

5)Define 

a) Ohm's law

b) Resistance

c) Series

d) Form Factor 

e) Amplitude

6) Difference Between 

a) Node and Junction

b) Loop and Mesh