I WANT VIVA QUESTONS AND ITS ANSWERS FOR PN JUNCTION DIODE EXPERIMENT? ....etc

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An Astable Multivibrator or a Free Running Multivibrator is the multivibrator which has no stable states. Its output oscillates continuously between its two unstable states without the aid of external triggering. The time period of each states are determined by Resistor Capacitor ( RC ) time constant ....etc

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Physics Lab Viva Voce

(1) Torsional Pendulum :
(1) Define Rigidity of modulus ?
Ans : When tangential surface forces are applied on a body , the successive layers of the material are moved or sheared.This type of strain is called shearing strain. The ratio of tangential stress to shearing strain is called Rigidity of modulus
Rigidity of modulus= Tangential stress / shearing strain.
Tangential stress = Force/Area.
Shearing strain=
(2) Define Moment Of Inertia ?
Ans : It is the measure of the inertia of a body in rot ....etc

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MOST EXPECTED PHYSICS VIVA QUESTIONS FOR PHYSICS PRACTICAL

EXPERIMENT : FOUR PROBE
1) Energy band gap?
2) Relation of resistivity and T?
(In case of metal and semi-conductor with reason)
3) Depletion layer?
4) N- and p- type semi-conductors example?

EXPERIMENT : I-H CURVE
1) Retentivity and its plot on I-H curve?
2) Solenoid?
3) What does I-H curve area imply?
4) Examples of para-, di- and ferromagnetic materials?
5) What if I-H curve is broad?
6) Magnetic meridian?

EXPERIMENT : PLANK S CONSTANT
1) Filter?
2) Stopping vol ....etc

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Plzz anybody give me the observation readings of LCR circuit.
1. Variation of various voltages.
2. Variation of voltages across with frequency for different R. ....etc

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viva question answer of flywheel experiment pdf

Aim:

To determine the moment of inertia of a flywheel.

Apparatus:

Fly wheel, weight hanger, slotted weights, stop watch, metre scale.

Theory:

The flywheel consists of a heavy circular disc/massive wheel fitted with a strong axle projecting on either side.The axle is mounted on ball bearings on two fixed supports. There is a small peg on the axle. One end of a cord is loosely looped around the peg and its other end carries the weight-hanger.

Let m be the mass of the weight hanger a ....etc

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Question 71Back to Top
Question: List the uses of solar cells.

Answer: A Solar cells or solar cell panels are used in:
1) Artificial satellites and in space probes like Mars orbiters
2) Wireless transmission systems or TV relay stations in remote locations
3) Traffic signals, calculators and in toys

Question 72Ba ....etc

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To get full information or details of rc circuit experiment viva questions and answers in btech 1st year physics lab please have a look on the pages

http://citchennai.eduwp-content/uploads/2014/01/Circuits.pdf

http://cg.nicbilaspur/ggpbsp3/Download%20Content/Download%20LAB%20MANUALS%20VIVA/Electronics%20&%20Telecommunication%20Deptt/Electrical%20&%20Electronic%20Measurement%20lab/Network%20Analysis%20viva.pdf

if you again feel trouble on rc circuit experiment viva questions and answers in btech 1st year physics lab please reply in that pag ....etc

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Polarimeter
The polarization analyzer series SK010PA-VIS/NIR is a comprehensive universal measurement and test system (polarimeter) for free beam applications and laser beam sources with polarization-maintaining fiber optics. It was developed for ease of use by experts in the field.
The polarization analyzer is a plug&play device and connects to the USB port of a standard computer. Alignments and measurements are performed rapidly. A real-time interactive display shows the state of polarization and the oscillating axis of the linearly polar ....etc

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Biasing a diode means applying appropriate DC voltage to a diode. A forward biased diode conducts
easily whereas reverse biased diode practically conducts no current. It means that forward resistance of a
diode is quite small as compared with its reverse resistance.
Forward current is the current flowing through a forward biased diode. Every diode has a maximum
value of forward current, which it can safely carry. If this value is exceeded, the diode may be destroyed
due to excessive heat. Reverse current or leakage current is the current t ....etc

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