Easystudies

Capacitor, Capacitance, Symbol of capacitors Capacitor :                   The capacitor is a component which has the ability or “capacity” to store energy in the form of an electrical charge producing a potential difference across its plates, much like a small rechargeable battery. Capacitance is the ability of a component or circuit to collect and store energy in the form of an electrical charge.  Unit of capacitance is measured in farad (f) .  Construction of capacitor : A capacitor consists of two conducting plates separated by an insulator (or dielectric).  Working of Capacitor                   A capacitor collects energy (voltage) as current flows through an electrical circuit. Both plates hold equal charges, and as the positive plate collects a charge, an equal charge flows off the negative plate.  When the circuit is switched off, a capacitor retains the ene...

Resistor, Resistance, Symbol of Resistor                           A resistor is an electrical component that limits the flow of electrical current in an electronic circuit. Resistance:            Resistance is a measure of the opposition to current flow in an electrical circuit. Resistance is measured in ohms, symbolized by the Greek letter omega (Ω). The resistance of resistor is depends upon 3 factors: Resistivity of the material used (ρ), Length of the resistor (l), Cross section area of the resistor (A) and temperature (T). Color Coding of Resistor                         Resistors are available in a range of different resistance values from fractions of an Ohm (Ω) to millions of Ohms. Generally resistor values are printed onto the body of the resistor as numbers or letters when the resistors body is big enough to r...

 Active Vs. Passive components   Electronic components are the basic building blocks of an electronic circuit. They control the flow of electrons in an electronic system or electronic circuit.  Electronic components are very small. The cost of electronic components is also low. Electronic components consist of two or more terminals.  When a group of electronic components is connected together in an electronic board such as printed circuit board (PCB), a useful electronic circuit is formed. Each electronic component in a circuit performs a particular task. Types of electronic components:  The electronic components are generally classified into two types:                     1. Passive components                     2. Active components  Passive components:                          T...

 Movement of Electrons (Current)                          When an electrical potential difference is applied across the metallic wire, the loosely attached free electrons start moving towards the positive terminal of the cell. This continuous flow of electrons constitutes the electrical current. The flow of currents in the wire is from the negative terminal of the cell to the positive terminal through the external circuit. Electric current is defined as the rate of flow of negative charges of the conductor or semiconductor. In other words, the continuous flow of electrons in an electric circuit is called an electric current. Unit of Current: The ampere is the SI unit of the Current. The I is the symbolic representation of the current.  To understand the Movement of Electrons (Current); please click the link below https://www.youtube.com/watch?v=t6pqrkWSWL8 Types of Current:          ...

 Atomic Number The atomic number of an element is the number of protons in the nucleus of each atom of that element. An atom can be classified as a particular element based solely on its atomic number. Since atoms are neutral, the number of electrons in an atom is equal to the number of protons.  Atomic Number is represented by the letter Z For example, carbon’s atomic number is 6 because it has 6 protons. Mass Number:  The mass number is defined as the total number of protons and neutrons in an atom.  Mass Number is represented by the letter A.  Example: For a carbon (C) element, the Mass number of carbon is 12 & the atomic number is 6. To understand the atomic number; please click the link below  https://www.youtube.com/watch?v=_S7ov25y3_M Charge of an atom: When an atom has equal numbers of positive and negative particles, it has a neutral charge. But if an atom has extra electrons or is missing electrons, it is known as an ion, and it may bear a ...

 Structure of an atom An atom is the smallest unit of matter that retains all of the chemical properties of an element. An atom consists of two regions. The first is the tiny atomic nucleus, which is in the center of the atom and contains positively charged particles called protons and neutral, uncharged, particles called neutrons. The second, much larger, region of the atom is a “cloud” of electrons, negatively charged particles that orbit around the nucleus.  The attraction between the positively charged protons and negatively charged electrons holds the atom together. Most atoms contain all three of these types of subatomic particles—protons, electrons, and neutrons. For example: A sand castle is a very large number of sand atoms molded into the shape of castle. If the castle is demolished, it will become sand stones which will still retaining the properties of sand crystal. A sand crystal atom gets its properties from the tiny subatomic particles it's as shown in be...

 Electronics actual history began with the invention of vacuum tubes. Subsequently, the use of germanium and silicon semiconductor materials starts the development of semiconductor devices.  The bulky vacuum tube which consumed high power for its operations are replaced by this semiconductor devices.  After a semiconductor devices introduction the IC fabrication leads the electronics field because of IC fabrication technology, the electronics products becomes compact.  To understand the history of electronics; please click the link below   https://www.youtube.com/watch?v=WsdVCCJsyfU 

 Introduction Electronics is the branch of science that deals with the study of flow and control of electrons (electricity) and the study of their behavior and effects in vacuums, gases, and semiconductors, and with devices using such electrons.  This control of electrons is accomplished by devices that resist, carry, select, steer, switch, store, manipulate, and exploit the electron.

1. Now a days semiconductors are changing the world. WHAT IS SEMICONDUCTORS                   semiconductors are both insulator(ceramic) and conductors(metals) that means conductors are materials with high conductivity that allow the flow of charges when you applied the voltage. WHAT ARE THE SEMICONDUCTORS                    The semiconductors are  silicon (Si), germanium (Ge), and tin (Sn) in column IV and selenium (Se) and tellurium (Te) in column VI in periodic periodic table.    WHICH SEMICONDUCTORS ARE MOSTLY USED                 In this silicon are mostly used due to its availability of substance in sand.                   In sand silicon are present every where. so that most of the semiconductors are used in manufacturing industry as silicon as  components( active component...