Amplifier Frequency Effects

Amplifier Frequency Effects Frequency response of an amplifier is the graph of its Gain versus the Frequency. The middle range of frequency is where amplifier is normally operated. At low frequencies coupling and bypass capacitor acts as high capacitive reactance Read More

FET APPLICATIONS IN TODAY ANALOG WORLD

FET APPLICATIONS IN TODAY ANALOG WORLD Suitable for the post of Junior Engineer in BSNL, DMRC, DRDO, PTCUL, RRB, UPCL, etc examination. Application: Buffer Main Advantage: High Zin and Low Zout Uses: General Purpose measuring equipment, receivers. Application: RF Amplifier Main Advantage: Low Noise Uses: FM Tuners, Read More

Most Important Points | Classes of Transistor Amplifier Operation | Competitive Examination

Most Important Points | Classes of Transistor Amplifier Operation | Competitive Examination Suitable for the post of Junior Engineer in BSNL, DMRC, DRDO, PTCUL, RRB, UPCL, etc examination. Class – A: Transistor operate in active region at all times i.e. collector current flows for 360º Read More

Most Important Points | Bipolar Junction Transistors | Competitive Examination

Most Important Points | Bipolar Junction Transistors | Competitive Examination Suitable for the post of Junior Engineer in BSNL, DMRC, DRDO, PTCUL, RRB, UPCL, etc examination. Bipolar Junction Transistors (BJT) is a three terminal, two junction, non-linear semi-conductor device, that can amplify electronic signals. Emitter Read More

Most Important Points | Diodes | Part-II | Competitive Examination

Most Important Points | Diodes | Part-II | Competitive Examination Suitable for the post of Junior Engineer in BSNL, DMRC, DRDO, PTCUL, RRB, UPCL, etc examination. Diode is a Non-Linear device. The ac component present in the dc output of rectifier is called ripple. For Read More

Most Important Points | Diodes | Part-I | Competitive Examination

Most Important Points | Diodes | Part-I | Competitive Examination Suitable for the post of Junior Engineer asked in BSNL, DMRC, DRDO, PTCUL, RRB, UPCL, etc examination. Semiconductors have 4 electrons in their external orbit Example:- Si-14, Ge-32. Pure semiconductor is called Read More

Most Important Points | Magnetic Circuit

Most Important Points | Magnetic Circuit Suitable for the examination which asked questions from Basic Electrical Engineering. To derive magnetic flux through a magnetic circuit, a Magnetic Force (mmf) is necessary. Magneto motive force can be produced when current flows in Read More

Most Important Points | Electromagnetism

Most Important Points | Electromagnetism Anybody which possesses the power of attracting pieces of iron called a Magnet. The property by virtue of which this attraction takes place is called Magnetism. The iron ore like magnetite, lode stone are called Read More

Most Important Points | Electrostatics

Most Important Points | Electrostatics The Branch of Engineering which deals with the Static Charges is called electrostatics. It is generally used while designing and studying Lightening Rods and Capacitors. When particular body is rubbed with another body, Electric Charge Read More

Most Important Points | DC Circuits

Most Important Points | DC Circuits An independent source which can deliver or absorb energy continuously is called an Active Element. The resistivity of Annealed Copper at 20 degree centigrade is 1.725 x 10^-8 ohm-m. Of all Pure Metals, the Read More