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Laieeqa
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.
Answer
2
Nithyashrri Saravanan
Subject: Physics
, asked on 6/3/18
Dear experts what is the biasing of emitter and the collector in this diagram
Answer
1
Lavneesh Rajput
Subject: Physics
, asked on 5/3/18
give the principle of an amplifier
Answer
1
Lavneesh Rajput
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
Answer
1
Aditi Sharma
Subject: Physics
, asked on 3/3/18
Explain how the fundamental logic gates can be realized using NAND gates alone.
Answer
3
Lavneesh Rajput
Subject: Physics
, asked on 3/3/18
Write its truth table and identify the resultant gate
Answer
1
Chaitanya Kapoor
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.
Answer
1
Chaitanya Kapoor
Subject: Physics
, asked on 1/3/18
Leds are.made by compound semiconductor.and.not elemental semiconductors why
Answer
2
Varnika Dhiman
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.
Answer
2
Varnika Dhiman
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.
Answer
1
Varnika Dhiman
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.]
Answer
2
Chaitanya Kapoor
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 ?
Answer
1
Megha Prasadan
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
Answer
1
Maya
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
40
μ
A
and 40. Find the current through the circuit?
Answer
1
Maya
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.
Answer
1
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What are you looking for?
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.
13. Draw the output waveform at shown below. Also, identify the logic operation performed by
• 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.
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 ?
Q. In the circuit shown in the figure, identify the equivalent gate of the circuit and make its truth table
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.