User: Gayathri S

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Gayathri S0
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Posts by Gayathri S

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Page: Introduction to Power Amplifiers
... Q) Give comparison between voltage and power amplifier | SL.NO | Parameters | Small signal amplifier | Power amplifier | |-------|--------------------------|------------------------------------------------- ...
page edc2book written 6 weeks ago by Gayathri S0
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Page: Field Effect Transistors(FET)
... **Introduction** - The field effect transistor(FET) is three terminal device. - It is also known as 'unipolar' transistor - FET has many applications as that of BJT's - Following table shows comparative study of BJT and FET | | Parameters | BJT(Bipolar) ...
page edc2book written 6 weeks ago by Gayathri S0
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Page: Introduction to Oscillators
... - In f/b amplifier, if f/b signal is applied in such a way that it is in phase with the i/p signal, then it is called positive feedback. This positive feedback results in a feedback(A$_{f}$) to be greater than open loop gain(A). It results into instability and operates as an oscillator circuit. ** ...
page edc2book written 6 weeks ago by Gayathri S0
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Page: Multi Stage Amplifiers
... **Q) State need of multistage amplifier** The voltage gain or current gain obtained from single transistor amplifier is usually not sufficient for most of the applications. - Hence several amplifier stages are connected in cascade. i.e connected such that the output of one stage forms input of th ...
page edc2book written 6 weeks ago by Gayathri S0
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Page: Introduction to Feedback Amplifiers
... **Feedback** It is a process in which part of output is sampled and fed back to the input. **Feedback Amplifiers** - The amplifiers which uses feedback principle are called 'feedback amplifiers'. Q) List and explain two types of feedback. - Depending upon whether the feedback signal increases ...
page edc2book written 7 weeks ago by Gayathri S0
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Page: Darlington pair Amplifier
... **(A) Darlington connection** - It is a popular connection of two BJT's to obtain one 'super beta' transistor. - It is shown in following figure: ![enter image description here][1] - Let, $\beta_{1}$ is gain of transistor Q$_{1}$ & $\beta_{2}$ is gain of transistor Q$_{2}$ Then, due to d ...
page edc2book written 7 weeks ago by Gayathri S0
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Page: Basic MOSFET Amplifier
... ![enter image description here][1] This simple enhancement-mode common source mosfet amplifier configuration uses a single supply at the drain and generates the required gate voltage, V$_{G}$  using a resistor divider. We remember that for a MOSFET, no current flows into the gate terminal and from ...
page edc2book written 7 weeks ago by Gayathri S0
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Page: Design of Thick cylinders
... When the ratio of inner diameter of the cylinder to the thickness is less than 15, the cylinder is called as a **'thick-walled'** cylinder or simply **'thick'** cylinder. **Examples**-Hydraulic Cylinders, high pressure pipes, gun barrel **Formulae list:-** (1) $\sigma_{t}$ = Tangential stress(Ten ...
page md1book written 7 weeks ago by Gayathri S0 • updated 22 days ago by Sanket Shingote ♦♦ 250
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Page: Numericals on Design of bolted joints.
... **Q.1 Find the diameter of rivet, if the maximm shear stress in the rivet is limited to $60\ N/mm^2$. The max. load carried by the bracket is $42\ kN$. at an eccentricity of $200\ mm$.** ![enter image description here][1] Soln. (I) Primary effect -- $F_{P} = \frac{P}{n} = \frac{42 \times 10^3}{6 ...
page md1book written 7 weeks ago by Gayathri S0 • updated 17 days ago by Sanket Shingote ♦♦ 250
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Page: Design of bolted joints and numericals
... **Design of bolted joint :-** **CASE I: Load acts perpendicular to bolt axis:** ![enter image description here][1] (1) Due to the loading as shown in the fig., bolts are subjected to direct shear (primary effect). (2) Bolts are also subjected to tensile stress due to turning moment about tilting ...
page md1book written 7 weeks ago by Gayathri S0 • updated 16 days ago by Sanket Shingote ♦♦ 250

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