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Q. Explain the applications of emitter follower.
Because of high input impedance and low output impedance an emitter follower is capable of transferring maximum power from the high impedance source to low impedance load. When an emitter follower is employed for this purpose it is called a buffer amplifier. The emitter follower is more preferred than a step-down transformer for impedance matching because it is more convenient and it also provides a better frequency response. Emitter follower can also be deployed in circuits where high current gain is required without increase in voltage gain.
Geometric transformations Apply the following geometric transformation to a set of points. Generate randomly coordinates for 1 point X=(x,y). X=100*rand(2,1) x=X(1,1)%to
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Q. A sectional view of a cylindrical iron-clad plunger magnet is shown in figure. The small air gap between the sides of the plunger and the iron shell is uniform and 0.25 mm long.
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