ECE

Superposition theorem The Superposition theorem states that if a linear system is driven by more than one independent power source, the total response is the sum of the individual responses. If the network contains more than one voltage or current source, superposition allows for a solution to be found by considering each voltage...

SUPERMESH: When a current source is common to two meshes we use the concept of super mesh. A supermesh is created from two meshes that have a current source in common EXAMPLE SOLUTION At node A current i1 is entering,i2 and 1.5A are leaving So by appling KCL at node A -i1 + i2 + 1.5 = 0   i1 = i2 + 1.5   --------------------------------------...

When a voltage source comes in between two  node then these two nodes and the voltage source form a supernode and we take this supernode as a single node and apply KCL and KVL . Rules for solving a supernode 1 Mark a reference node such that a supernode can’t be formed. Try to avoid supernode at first hand. If it’s not possible...

MESH ANALYSIS The mesh analysis is a systematic way of applying KVL around each mesh of a circuit and describes the branch voltages in terms of the mesh currents. This will give us a set of equations that we solve together to find the mesh currents. Once we find the mesh currents we can use them to calculate any other currents or voltages...

NOTE :Click on the topic,wait for 5 sec and press skip ad    1 ) KCL AND KVL 2) OHM'S LAW 3) RESISTOR 4) INDUCTOR 5) CAPACITOR 6) NODAL ANALYSIS 7) SUPER NODE ANALYSIS 8) MESH ANALYSIS 9) SUPER MESH ANALYSIS 10)TECHNIQUES IN CIRCUIT SOLVING        SUPERPOSITION THEOREM         THEVENIN AND...

41. Define input offset voltage? It is defined as the voltage that must be applied between the input terminals of an op-amp to nullify the output. 42. Define input offset current? It is defined as the algebraic difference between the current entering the inverting and non-inverting terminal of an op-amp. 43. Define input bias current? It is defined as the average of the currents entering into the input terminals of an op-amp. 44....

1.Define an Integrated circuit.An integrated circuit(IC) is a miniature ,low cost electronic circuit consisting of active and passive components fabricated together on a single crystal of silicon.The active components are transistors and diodes and passive components are resistors and capacitors.2.What are the basic processes involved in fabricating ICs using planar technology?1.Silicon wafer (substrate) preparation2.Epitaxial...

21. What is an amplifier?An amplifier is a device which produces a large electrical output of similar characteristics to that of the input parameters.22. How are amplifiers classified according to the input?1. Small – signal amplifier 2. Large – signal amplifier23. How are amplifiers classified according to the transistor configuration?1. Common emitter amplifier2. Common base amplifier 3. Common collector amplifier24....

The net flow of electrons and holes in a semiconductor will generate currents.The process by which these charged particles move is called transport.There are the two basic transport mechanisms in a semiconductor crystal: Drift the movement of charge due to electric fields, and Diffusion the flow of charge due to density gradients.The...

MOBILITY When an electric field E is applied across a piece of material, the electrons respond by moving with an average velocity called the drift velocity, . Then the electron mobility μ is defined as                                ...