hall effect experiment viva questions pdf

MOST EXPECTED PHYSICS VIVA QUESTIONS FOR PHYSICS PRACTICAL
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 ....etc

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Materials Required: A Resistance wire, voltmeter, ammeter, battery, rheostat, meter scale, one way key, connecting wires etc.

Theory: If I be the current flowing through a conductor & V be the potential difference across its ends, then according to Ohm s law
V I
or V = RI
Where, R is the constant of proportionality. It is known as resistance of the conductor.
V/I=R
R depends upon the nature of material, temperature & dimensions of the conductor.

Procedure:
1. Clean the ends of the connecting wires with the help of sand p ....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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Physics Lab Viva Voce Questions and its answers Laser Parameters
1. What is semi conductor diode laser?
Semiconductor diode laser is a specially fabricated pn junction diode. It emits laser light when it is
forward biased.
2. What is LASER?
The term LASER stands for Light Amplification by Stimulated Emission of Radiation. It is a device
which produces a powerful, monochromatic collimated beam of light in which the waves are coherent.
3. What are the characteristic of laser radiation?
Laser radiations have high intensity, high coherence, ....etc

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To get data about it please visit the given page link :

http://engineeringinterviewquestions.com. ....etc

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Nowadays the demand for oscilloscopes are increasing. PC based
oscilloscope is used to view the waveforms of various types of electrical signals.
This circuit conditions different signals of frequency below 1 kHz and displays
their waveforms on the computers screen. The circuit is used to the input
waveform and convert it to the digital format for interfacing to the PC. The
software for acquiring the data into the PC and displaying the same on its screen is
written in Visual basic.
The input waveform is first applied to a rectifier compr ....etc

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To get full information or details of physics hollow prism experiment please have a look on the pages

http://ppr21.blogspot2012/12/contents-sl.html

http://arborsciData_Sheets/33-0235_DS.pdf

if you again feel trouble on physics hollow prism experiment please reply in that page and ask specific fields in physics hollow prism experiment ....etc

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ELECTRICAL ENGINEERING PRACTICAL VIVA-VOCE QUESTIONS
LIST OF QUESTIONS:COMMON QUESTIONS:1)

WHY DO WE REPLACE CURRENT SOURCE WITH A OPEN CIRCUIT FOR CALCULATING RTH?2)

WHY DO WE REPLACE VOLTAGE SOURCE BWITH A SHORT CIRCUIT FOR CALCULATING RTH?3)

WHAT DO YOU MEAN BY LOAD?4)

WHICH QUANTITY IS SAME IN SERIES CIRCUIT?5)

WHICH QUANTITY IS SAME IN PARALLEL CIRCUIT?6)

WHAT DO YOU MEAN BY RESISTANCE OF A CONDUCTOR?7)

WHAT DO YOU MEAN BY IDEAL VOLTAGE SOURCE?8)

WHAT DO YOU MEAN BY IDEAL CURRENT SOURCE?9)

WHAT DO YOU M ....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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