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list of important topics of semi conductor physics

Posted by Ysgahjaj Hjajajmam 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Shaima Ameen 7 years, 1 month ago

transistor rectifier amplifier logic gates

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Modem?

Posted by Rahul Kumar Choudhary 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Simran Baidwan 7 years, 1 month ago

Modulator demodulator

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State gauss theoram

Posted by Ayush Verma 7 years, 1 month ago

CBSE > Class 12 > Physics

3 answers

Tannu Sehwag 7 years, 1 month ago

The surface integral of the electric field over close hypothetical surface in free space is equal to 1/€o times the net charge enclose within the surface

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Chakshu Sharma 2204 7 years, 1 month ago

Total electric flux link with surface in vacum which encloses a charge is 1/€o times the total charge enclose by surface

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Ash Thunderbird ✔ 7 years, 1 month ago

Total electric flux linked with closed surface (s) is q/eo where q is the total charge enclosed by Gaussian surface.

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A ray of light passing through prism refracting index is 1.414 suffer minimum deviation it is found that i=2r what is angle of prism

Posted by Sandeep Maan 7 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

ANSWER

what is the advantage of using thick metallic strip in metre Bridge

Posted by Megha Rathore 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Chakshu Sharma 2204 7 years, 1 month ago

To minimise the extra resistance

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Derive prism formula

Posted by Rahul Kashyap 7 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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Expression for energy store in the parallel plate capacitor 1)without dielectric 2) with dielectric

Posted by Henthoibi Thongam 7 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

ANSWER

How is amplitude modulation achived?

Posted by Tushar Yadav 7 years, 1 month ago

CBSE > Class 12 > Physics

2 answers

Nitika Neb 7 years, 1 month ago

Suprimpose *

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Nitika Neb 7 years, 1 month ago

Amplitude Modulation is achieved when a low frequency modulated wave is Supriya post on a high frequency carrier waves for long distances transmission

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Law of reflection

Posted by Rahul Kashyap 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Dev Joshi 7 years, 1 month ago

Angle of incidence is equal to angle of reflection. And the incident ray,the normal ,and the reflected lies in the same plane

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Is electric polarisation vector p is equal to dipole moment

Posted by Amit Yadava 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Anuj Sharma 7 years, 1 month ago

No it is equal to X€°E

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Explain me emf in easy method

Posted by Anantha Shankar 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Dev Joshi 7 years, 1 month ago

Basically when cell is not connected to a circuit so the potential inside it is emf and when it is connt it becomes potential difference.And potential difference is less than emf of cell.

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What is the origin of displacement current?

Posted by Happy Dandiwal 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Amit Yadava 7 years, 1 month ago

As change in magnetic flux cause induced emf similarly change in electric flux cause displacement current

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Does the coulomb's law agree with the newton third law . Explain?

Posted by Naveen Kumar 7 years, 1 month ago

CBSE > Class 12 > Physics

3 answers

Yogita Ingle 7 years, 1 month ago

Yes Coulomb's law is in accordance with Newton's third law of motion. Coulomb forces are equal in magnitude, opposite in direction and act on different bodies.

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Himani Singh 7 years, 1 month ago

2005

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Himani Singh 7 years, 1 month ago

2017main exam

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A jet is traveling towards West at a speed of 1800 km/h. What is the voltage difference developed between the ends of the wing having a spam of 25 m, if the earth's magnetic field at the location has a magnitude of 5*1/10000 T and the dip angle is 30

Posted by Sumit Kumar Singh 7 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

ANSWER

When practical exam will began.

Posted by Ritesh Kumar 7 years, 1 month ago

CBSE > Class 12 > Physics

3 answers

Yo Yo Honey Singh ? 7 years, 1 month ago

From 15 jan to 15 feb

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Bhawani Shankar 7 years, 1 month ago

from tomorrow onwards

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Rishabh Luhach 5 years, 10 months ago

When your school wants

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What is electric potential ?

Posted by Ķåńğ Śăäb 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Nitika Neb 7 years, 1 month ago

It is the amount of work done in moving a charge from infinity to some.

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In an Ac circuit containing a prime inductor, show that the voltage is ahead of current by pie/2 in phase. Draw the .draw the diagram for the circuit and the graph of V and I versus

Posted by Crispy Anand 7 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Relation b/wmagnetic permeability and magnetic susceptibility for a solinoid

Posted by Anuj Tomar 7 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Universal gate

Posted by Pavan Chaudhary 7 years, 1 month ago

CBSE > Class 12 > Physics

3 answers

Jagdeep Virdi 7 years, 1 month ago

NAND gate only.

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Akshita Tank 7 years, 1 month ago

NAND and NOR gate

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Anubha Sinha 7 years, 1 month ago

Nand gate

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Why is the force between two masses is always attractive?

Posted by Ma Nisha Mannu 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Nitika Neb 7 years, 1 month ago

The force of gravity acts between all objects that have mass. The force of gravity is always attractive. ... The magnitude of the force between two objects depends on the mass of each of them. The magnitude of the gravitational force between two objects decreases if the objects move further apart

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Define temperature coefficient of resistivity

Posted by Faiz A Akhtar 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Nitika Neb 7 years, 1 month ago

A negative coefficient for a material means that its resistance decreases with an increase in temperature. Semiconductor materials (carbon, silicon, germanium) typically have negative temperature coefficients of resistance.

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What is the mark wieghtage of dual nature of wave and radiation chapter

Posted by Mayank K. Mahour 7 years, 1 month ago

CBSE > Class 12 > Physics

2 answers

Tannu Sehwag 7 years, 1 month ago

4 marks 1marks+3 marks

1Thank You

Reshma Raju 7 years, 1 month ago

4 marks for dual nature of radiation and matter

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Si unit of electric polarisation vector p

Posted by Amit Yadava 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Hacking Wave 7 years, 1 month ago

C/m^2

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Explain moving coil galvanometer

Posted by Adarsh Dubey 7 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Si unit of electricpolarisatoin vector p

Posted by Amit Yadava 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Abhishek Singh 7 years, 1 month ago

C/m^2

1Thank You

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Derive an exp. For refractive index of the prism in terms of angle of minimum deviation and angle of prism

Posted by Mandeep Singh Thakur 7 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Explain electric dipole and moment.

Posted by Vikash Vishwal 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Amit Yadava 7 years, 1 month ago

Electric dipole is a system of the two charges which are separated by some distances Where as moment is product of either of charges and theredistance that is p= q 2l Where q is either of the charge and 2l is distance by which two charges are apart

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Define coulomb's law.

Posted by Vikash Vishwal 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Amit Yadava 7 years, 1 month ago

According to this law the force acting between two charges is directly promotional to the product of two charges and inversaly propotipnal to the distance between two charges

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What is superposition of charge?

Posted by Vikash Vishwal 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Reshma Raju 7 years, 1 month ago

The principle of superposition allows for the combination of two or more electric fields. The principle of superposition states that every charge in space creates an electric field at point independent of the presence of other charges in that medium.

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What is point charge?

Posted by Vikash Vishwal 7 years, 1 month ago

CBSE > Class 12 > Physics

5 answers

Amit Yadava 7 years, 1 month ago

Just modifide to previous one

1Thank You

Amit Yadava 7 years, 1 month ago

It may be difined as when two charges are separated by a distance and this distance is very very large than the size of the charge that is diameter of the charge ,if we considered it as a sphere

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Nidhi Priya 7 years, 1 month ago

When seperation between two charges is much greater than their given charge then they are called as point charges

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Monica Bhatt 7 years, 1 month ago

A charge which may be positive or negative whose electric feild is found at a particular distance(point)..

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Reshma Raju 7 years, 1 month ago

an electric charge regarded as concentrated in a mathematical point, without spatial extent.

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