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  • 1 answers

Rohit Krishna 13 hours ago

It is an old convention to take direction of current to be opposite to the direction of electron,ie in the direction of proton....But the actual fact is that the direction of current is actually in the direction of flow of electrons...
  • 2 answers

Avinash Shukla 23 hours ago

Speed of Light=3x10 ki power8 ms-l

Rohit Krishna 1 day, 6 hours ago

Speed of light in vacuum is approximately 3*10^8 m/s.The actual value in vacuum is 2.99792458*10^8 m/s.
  • 1 answers

Yogita Ingle 1 day, 9 hours ago

<th> <center>Alternating Current</center> </th> <th> <center>Direct Current</center> </th>
AC can carry and safe to transfer longer distance even between two cities, and maintain the electric power. DC cannot travel for a very long distance. It does, it loses electric power.
The rotating magnets cause the change in direction of electric flow. The steady magnetism makes DC flow in a single direction.
The frequency of AC is depended upon the country. But, generally, the frequency is 50Hz or 60Hz. DC has no frequency of zero frequency.
In AC the flow of current changes its direction backwards periodically. It flows in a single direction steadily.
Electrons in AC keep changing its directions – backward and forward Electrons only move in one direction – that is forward.
  • 2 answers

Avinash Shukla 22 hours ago

Which chapter

Rohit Krishna 1 day, 6 hours ago

Which chapter?
  • 2 answers

Avinash Shukla 23 hours ago

we have to prove Coulombs law Kq1q2/r square

Gaurav Bagga 1 day, 10 hours ago

Coulombs law
  • 3 answers

Gaurav Seth 1 day, 11 hours ago

Coulomb’s Law

Coulomb’s law states that Force exerted between two point charges:

  • Is inversely proportional to square of the distance between these charges and
  • Is directly proportional to product of magnitude of the two charges
  • Acts along the line joining the two point charges.

Here ε0 = 8.854 x 10-12 C2 N-1 m-2is called permittivityof free space.

Raghav Yadav 1 day, 12 hours ago

f=1/4^€o q1 q2 /rsquare

Raghav Yadav 1 day, 12 hours ago

it states that the force of aatraction or repulsion between the 2 point charges is ditectly proportional to the product of magnitude of charge and inversely proportional to the square of the distance between them
  • 1 answers

Ayush Vishwakarma 1 day, 1 hour ago

Quarks are the sub atomic particle of proton,nuetron and electron.
  • 2 answers

Diksha Choudhary 1 day, 23 hours ago

There is no any force exert because electrostatic force depends on medium☺️☺️☺️☺️

Anshu Prajapati 2 days, 11 hours ago

There is no any force exert because elcetrostatic force depends on medium
  • 1 answers

Rohit Krishna 3 days, 6 hours ago

When we rub a glass rod with a wool,the glass rod(which has affinity for positive charge) loses electrons and becomes positively charged.The wool(which has affinity for negative charge) acquires those electrons and becomes negatively charged.
  • 2 answers

Diksha Choudhary 1 day, 23 hours ago

-1.6*10^-19 C = chage of an electron

Rohit Krishna 3 days, 12 hours ago

-1.6*10^-19C= charge of one electron
  • 5 answers

Riya Rana 3 days, 9 hours ago

Physics wallah

Riya Rana 3 days, 9 hours ago

Unacademy

Aryan Jangra 3 days, 21 hours ago

Unacedmy and physics wallah both are on top in youtube

Rakshit Kaushik 3 days, 22 hours ago

Physics wallah

Rohit Krishna 3 days, 22 hours ago

Examfear(ncert based),doubtnut,unacademy
  • 5 answers

Avinash Shukla 23 hours ago

Only ncert

😊 😇 3 days, 5 hours ago

Go for sl arora.....you have to clear your concepts first and after that you can read ncert....i wont recommend you to study ncert first in physics....bio and chem ncert is enough but in phy the ncert has mixed up concepts so in order to have a better grip for a chapter read it from a guide first...and then ncert will polish your reasoning ability

Rohit Krishna 3 days, 22 hours ago

NCERT is the only way to understand basics of physics,but it is a little hard to digest.If you read it carefully with your highest concentration,you will understand it and hence, physics.

Richa Raunak 3 days, 23 hours ago

Only NCERT😅

Eshan Joshi 3 days, 23 hours ago

Please fast
  • 3 answers

Paras Chauhan 2 days, 13 hours ago

Thanku

Yogita Ingle 3 days, 8 hours ago

Adsorption is a process which involves the accumulation of a substance in molecular species in higher concentration on the surface. If we look at Hydrogen, Nitrogen and Oxygen, these gases adsorb on activated charcoal. Meanwhile, we have to note that adsorption is different from absorption. The two processes involve totally different mechanisms.

For the adsorption process, two components are required,

  • Adsorbate: Substance which is deposited on the surface of another substance. For example, H2, N2 and O2 gases.
  • Adsorbent: Surface of a substance on which adsorbate adsorbs. For example, Charcoal, Silica gel, Alumina.

Rohit Krishna 4 days, 2 hours ago

The accumulation of molecular species at the surface rather than in the bulk of solid or liquid is termed as adsorption.
  • 3 answers

Avinash Shukla 23 hours ago

Charging by induction

Riya Rana 4 days, 3 hours ago

By bringing a negatively charged rod near the metal sphere, through induction all the positive charge is collected near the rod, then the other side of the metal can be earthed to remove all the negative charge. Hence in the end we get a positively charged metallic sphere.

Premraj Verma 4 days, 5 hours ago

By induction; using negatively charged another sphere
  • 1 answers

Riya Rana 4 days, 3 hours ago

It is the amount of work done to carry a unit of charge particle from infinity { V=W/q } And potential for a point charge = kq/r.
  • 0 answers
  • 1 answers

Anshu Prajapati 2 days, 11 hours ago

Biot savarts law is used to determine the magnetic field at a point due to current carrying conductors

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