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Impact paramiter

Posted by Lalit Rajpoot 7 years, 1 month ago

CBSE > Class 12 > Physics

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Give a perfect derivation fo ohms law

Posted by Jairaj Bagri 7 years, 1 month ago

CBSE > Class 12 > Physics

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Draw equipotential surface for a dipole

Posted by Femin Gloria 7 years, 1 month ago

CBSE > Class 12 > Physics

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What is magnetisem

Posted by Abhay Singh 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Tarun Deshwal 7 years, 1 month ago

The another field(except electric field) which occur around a current carrying wire is magnetic field and this phenomenon is known as magnetism.

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two nichrome wires are connected in series with the battery. How does the ratio of drift velocity of electrons in them depend on their length and diameters.

Posted by Ss R 7 years, 1 month ago

CBSE > Class 12 > Physics

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an e- beam is deflected in a field how will detect whether the field is magnetic field or electric field

Posted by Daya Narayan Dixit 7 years, 1 month ago

CBSE > Class 12 > Physics

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The dimension of an atom are of the order of an anhstrom.thus there must be large electric field between the proton and electron. why then is electrostatic field inside a conductor is zero?

Posted by Virender Singh 7 years, 1 month ago

CBSE > Class 12 > Physics

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What is the effect of Eddy current in instruments ?

Posted by Vikji Rawat 7 years, 1 month ago

CBSE > Class 12 > Physics

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Important question for physics compartment

Posted by Nitin Dubey 7 years, 1 month ago

CBSE > Class 12 > Physics

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Find the position of the image formed by the lens combination

Posted by Saurav Singhania 7 years, 1 month ago

CBSE > Class 12 > Physics

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Million & billions of electrons in a coin repels each other . Why don't they fly out of the coin?

Posted by Ambika Muduli 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Tarun Deshwal 7 years, 1 month ago

If you will placed in a closed room of building then you can not move out it. Similarly electrons are packed in shells, they collide each other but can not reach outside

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Is magnetic field and electric field are similar ???

Posted by Home Mallick 7 years, 1 month ago

CBSE > Class 12 > Physics

3 answers

Ayush Jha 7 years, 1 month ago

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Rajnish Kunwar 7 years, 1 month ago

Acq to maxwell it is similar..

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Riya Chaurasiya 7 years, 1 month ago

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Fleming's left hand rule definition.

Posted by Shuvam Biswas 7 years, 1 month ago

CBSE > Class 12 > Physics

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Can an electrically neutral body be attracted by a charged body?

Posted by Ambika Muduli 5 years, 5 months ago

CBSE > Class 12 > Physics

2 answers

Mukul Sharma 7 years, 1 month ago

Yes, an electrically neutral body can attract by charged body because ,a charge body (let positive charge)attract all negative charges of neutral body and repal positive charges , this phenomena makes attraction between them.

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Nishi Sharma 7 years, 1 month ago

It can be induced and then may repel or attract

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What biotsavart law

Posted by Zubair Khan 7 years, 1 month ago

CBSE > Class 12 > Physics

3 answers

Shivam Patel 7 years, 1 month ago

The Biot Savart Law is used to determine the magnetic field intensity H near a current carrying conductor or we can say it gives the relation between magnetic field intensity generated by its source current element.The law was stated in the year 1820 by Jean Baptisle Biot and Felix Savart. The direction of the magnetic field follows the right hand rule for the straight wire. Biot Savart law is also known as Laplace’s law or Ampere’s law.

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Mukul Sharma 7 years, 1 month ago

Biot savarts law gives us magnetic field due to a infine small current element of an conductor at any point near by conductor at a distance 'r'

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Rishabh Sahu 7 years, 1 month ago

This law is used to determine the magnetic field produced due to a small current carrying element .

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What is chemisorption

Posted by Rahul Upadhyay 7 years, 1 month ago

CBSE > Class 12 > Physics

2 answers

Akshay Satish 7 years, 1 month ago

Chemical adsorption

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Abhay Nihalani 7 years, 1 month ago

When the DP particles are having chemical bond with DM particle then it is said to be chemisorption .

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How power loss can be minimised in long distance transmission?

Posted by Ravinder Gulati 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Nishi Sharma 7 years, 1 month ago

By taking care of all power leaks

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How to calculate the work done by a torque?

Posted by Virendra Sharma 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Nishi Sharma 7 years, 1 month ago

dw= torque x d(thita)

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A battery of 10 v and negligible internal resistance is connected across the diagonally opposite corners of a cubical network consisting of 12 resistor each of resistance 1 ohm .determine the equivalent resistance of the network and the current along each edge of the cube

Posted by Sanjeev Kumar 7 years, 1 month ago

CBSE > Class 12 > Physics

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Give two similarities between biot savarts law for magnetic feild and coulumbs law for electrosatics feild

Posted by Jaskaran Singh 7 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Ravi Kumar 7 years, 1 month ago

1 both are vector form 2 both obeys inverse square law 3 both are inversely to sqare of distance between them

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example 3.2

Posted by Simran Nathawat 7 years, 1 month ago

CBSE > Class 12 > Physics

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The angular velocity of earth when a body lies on it's equator loses it's weight is

Posted by Asawari Kale 7 years, 1 month ago

CBSE > Class 12 > Physics

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What if earth's core stopped spinning

Posted by Sahil Bhai Patre 7 years, 1 month ago

CBSE > Class 12 > Physics

2 answers

Sahil Bhai Patre 7 years, 1 month ago

How it will affect the magnetism of earth

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Nishi Sharma 7 years, 1 month ago

This will affect earth' s magnetism

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In navy comunication, light method can be used ?

Posted by Raman Sidhu 7 years, 2 months ago

CBSE > Class 12 > Physics

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What is dielectrics

Posted by Nh Jpk 7 years, 2 months ago

CBSE > Class 12 > Physics

2 answers

Nishi Sharma 7 years, 1 month ago

It is that insulator which gets polarised in application of e.f.

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Amn Neg 7 years, 1 month ago

A dielectric is an electrical insulator that can be polarised by an applied electric field

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S I unit of electric flux

Posted by Pritam Kumar 5 years, 5 months ago

CBSE > Class 12 > Physics

3 answers

Arya Ranjith 7 years, 2 months ago

Its not weber.it's Nm²/C

1Thank You

Datyam Singh 7 years, 2 months ago

sorry it is volt meter

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Datyam Singh 7 years, 2 months ago

Weber

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What is relation between electrical resistivity and electron mobility

Posted by Niteen Yaduvanshee 7 years, 2 months ago

CBSE > Class 12 > Physics

1 answers

Shivam Patel 7 years, 2 months ago

Resistivity is inversely proportional to the product of mobility and carrier concentration. In general: ρ=1nqμ where ρ is resistivity, n is carrier concentration, q is carrier charge, and μ is mobility. 766 Views ·

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How to find R equivalant and how many method we are find R equvalent?

Posted by Anand Singh 7 years, 2 months ago

CBSE > Class 12 > Physics