Negative feedback...

Negative feedback

Increases stability

Decreases stability

Produce oscillation

Stops current in the transistor

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In a negative feedback amplifier, the gain without feedback in 100 , feed back ratio is 1//25 and input voltage is 50 m V . Calculate (i) gain with feedback (ii) feedback factor (iii) output voltage (iv) feedback voltage (v) new input voltage so that output voltage with feedback equals the output voltage without feedback.

Identify the correct statement (s) regarding the human kidney I. It is responsible for the storage of nutrients such as glycogen II. It concentrates the urine by actively transporting water from the filtrate. III. It produces more dilute urine, when the collecting ducts become less permeable to water. IV. The kidney gets rid of urea from the body by secreting it into the descending arm of the loop of Henle. V. It responds to antidiuretic hormone by increasing urine output VI. It reponds to atrial natiutetic factor by decreasing urinary excretion VII. Kidney functions are controlled by negative feedback circuits involving ADH, RAAS and ANF.

Assertion : In an oscillator, the feedback is in the same phase which is called as positive feedback. Reason: If the feedback voltage is in opposite phase, the gain is greater than one.

AAKASH INSTITUTE-SEMICONDUCTOR ELECTRONICS: MATERIALS, DEVICES AND SIMPLE CIRCUITS-Assignment (Section -A (Objective Type question (One option is correct))

A silicon specimen is made into a P-type semiconductor by doping, on a...
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Consider the junction diode is ideal. The value of current through the...
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Negative feedback
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The current obtained from a simple filterless reactifier is
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The depletion region of p-n junction has a thickness of the order of
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In a properly biased transistor-
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In an n-p-n transistor, the collector current is 10 mA. If 90% of the ...
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Application of a forward biase to a p-n junction:
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Intrinsic semiconductor at absolute zero temperature is a
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An NPN-transistor circuit is arranged as shown in figure. It is
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Four equal resistors, each of resistance 10 ohm are connected as shown...
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In a semiconducting material the mobilities of electrons and holes are...
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A full wave rectifier circuit along with the input and output are show...
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In a p-n junction diode having depletion layer of thickness 10^(-6)m, ...
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What is the voltage gain in a common emitter amplifier, where output r...
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Barrier potential of a p-n junction diode does not depend on
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To which logic gate does the truth tabel given in the figure correspon...
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Which of the following is not equal to 1 in Boolean algebra ?
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In a p-n junction , the barrier potential offers resistance to
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