Subject: Physics, asked on 7/3/18

## Solve this: Q.a. A student wants to use two p-n junction diodes to convert alternating current into direct current. Draw the labelled circuit diagram she would use and explain how it works.

Subject: Physics, asked on 6/3/18

## Dear experts what is the biasing of emitter and the collector in this diagram Subject: Physics, asked on 5/3/18

## give the principle of an amplifier

Subject: Physics, asked on 3/3/18

## 12. Two convex lenses of same focal length but of aperture used as the objective lenses in two astronomical to eyepieces. What is the ratio of their resolving power? prefer and why ? Give reason. 13. Draw the output waveform at shown below. Also, identify the logic operation performed by

Subject: Physics, asked on 3/3/18

## Explain how the fundamental logic gates can be realized using NAND gates alone.

Subject: Physics, asked on 3/3/18

## Write its truth table and identify the resultant gate

Subject: Physics, asked on 1/3/18

## The graph of potential barrier versus width of depletion region for an unbiased diode is shown in A. In comparison to A, graphs B and C are obtained after biasing the diode in different ways. Identify the type of biasing in B & C and justify your answer.

Subject: Physics, asked on 1/3/18

## Leds are.made by compound semiconductor.and.not elemental semiconductors why

Subject: Physics, asked on 1/3/18

## Q). This is one of the point in the topic owner diode. Kindly explain what is it saying. Also, what does that O/P means ?!.. • When the voltage across the diode tends to increase, the current through the diode rises out of proportion and causes a sufficient increase in the voltage drop across the resistor. Therefore, the O/P voltage lowers back to normal.

Subject: Physics, asked on 1/3/18

## This is a merit answer. The lines I've underlined got me confused. Kindly have a look if there's any mistake. If there's not any error, then write it in another way once.

Subject: Physics, asked on 28/2/18

## Q. I'm not getting these circuit diagrams. Kindly explain this in detail giving all the answers that why it's connected there, why that particular thing is placed there, etc.,.Etc. [Explain from very basic, for this question.]

Subject: Physics, asked on 28/2/18

## Solve  8.    In the given circuit, a voltmeter V is connected across lamp L. What changes would you observe in the lamp L and the voltmeter, if the value of resistor R is reduced ? Subject: Physics, asked on 28/2/18

## Explain  Q. In the circuit shown in the figure, identify the equivalent gate of the circuit and make its truth table

Subject: Physics, asked on 28/2/18

## Q.6. Zener diode ${Z}_{1}$ has saturation current 20 A and reverse breakdown voltage of 100 V where as the corresponding value of ${Z}_{2}$ are and 40. Find the current through the circuit?

Subject: Physics, asked on 28/2/18

## Pls answer q no. 8 Q.8. Two semiconductor materials A and B shown in the figure are made by doping germanium crystal with arsenic and indium respectively. The two are joined end to end and connected to a battery as shown. (a) Will the junction be forward biased or reverse biased? Justify (b) Sketch a V-I graph for this arrangement.

What are you looking for?