CBSE > Class 12 > Physics | CBSE Board | Homework Help

It states that if more than one force is acting on a point charge and the forces are not opposite then the net force will be the vectorial sum of all the forces

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Ganesan Chandanapriya 7 years, 4 months ago

Force b/w two charges are independent of other charges,and dependent of medium

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ANSWER

Which is the best insulator

Posted by Yuvraj Sahu 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Aman Chhillar 7 years, 4 months ago

Aerogel is the best insulator most probably

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ANSWER

Find the frequency of revolution of an electronic revolving around the nucleus of atomic no. Z in an orbit of radius R??

Posted by Aman Chhillar 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Mansi Gupta 7 years, 4 months ago

(1/2π)[√{(kZ(e)^2)/(m(R)^3)}]

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There is a regular hexagon each of side a & it's five vertices have charge q. A change +Q is located at the center of the hexagon. Determine net force on Q?

Posted by Aman Chhillar 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Mansi Gupta 7 years, 4 months ago

kQq/(a)^2

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Two balls each of charge q connected by a thread of length l are kept in force free space. Determine the tension developed in the thread in the state of equilibrium?

Posted by Aman Chhillar 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Samiksha Saxenna 7 years, 4 months ago

Kq^2/l^2

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ANSWER

If mene physics mai 45 marks ka overall kia hai..sahi+galat....and meee strict checking ke hisab se 24 aare hai...to kya teachers ki checking ke hisab se mai pass kr di jaungi???

Posted by Kriti Sharma 7 years, 4 months ago

CBSE > Class 12 > Physics

2 answers

Aman Chhillar 7 years, 4 months ago

Obviously yes

3Thank You

Kartik Choudhary 7 years, 4 months ago

Yes

2Thank You

ANSWER

what happened to electriC field intesty when test charge become double

Posted by Anupama Sharma 7 years, 4 months ago

CBSE > Class 12 > Physics

5 answers

Samiksha Saxenna 7 years, 4 months ago

EFI is independent of test charge

0Thank You

Rishabh Sahu 7 years, 4 months ago

Test charge is a charge whose magnitude is so small that it's effects on surrounding electric fields is negligible . Hence if the test charge is doubled its effects on the electric field will be still negligible because it's still too small . Thus even though the charge is doubled we should take it as not affecting the he electric field.

0Thank You

Pragya Singh 7 years, 4 months ago

The value of EFI get half because it is inversely proportional to charge

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Aviral Rai 7 years, 4 months ago

remains unchanged

1Thank You

Rahul Sharma 7 years, 4 months ago

Half

1Thank You

ANSWER

Which physics book of class xii has broad explanation of each and every topic.

Posted by Shubham Chhikara 7 years, 4 months ago

CBSE > Class 12 > Physics

4 answers

Aman Chhillar 7 years, 4 months ago

Dinesh has the best material for cbse boards

3Thank You

Manohar Choudhary 7 years, 4 months ago

SL arora

1Thank You

Aviral Rai 7 years, 4 months ago

hc verma for numericals and concepts both

0Thank You

Aman Bisht 7 years, 4 months ago

Nootan and Pradeep

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A car fitted with a convex side view mirror of focal length 20cm . A second car 2.8m behind the first car is overtaking the first car with relative velocity of 15m/s . What will be the speed of the second car with respect to first one?

Posted by Jay Singh Rathore 7 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

When result will be declared

Posted by Khusnoor Alam 7 years, 4 months ago

CBSE > Class 12 > Physics

2 answers

Ashutosh Kumar 7 years, 4 months ago

20 may

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Aviral Rai 7 years, 4 months ago

when topper comes

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ANSWER

Two similar He filled

Posted by Prachi Bhandari 7 years, 4 months ago

CBSE > Class 12 > Physics

2 answers

Isha Ahuja 7 years, 4 months ago

Hey whts is ur question ???????

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Aman Chhillar 7 years, 4 months ago

??????

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ANSWER

What is potential difference?

Posted by Sanjana Rawat 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Rishabh Sahu 7 years, 4 months ago

Work done per unit charge to bring the charge from one point to another point in an electric field is equal to potential difference between the points.

1Thank You

ANSWER

Find out knock out fixture of 23 teams

Posted by Ankur And Akash Talukder 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Aman Chhillar 7 years, 4 months ago

How???

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ANSWER

Why quantisation is ignored at macroscopic level in continuous charge distribution?

Posted by Neha Gupta 7 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What will happen if proton acquire -ve charge and electron will acquire +-ve charge

Posted by Himayani Pandey 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Rishabh Sahu 7 years, 4 months ago

Positive and negative is just a way to differentiate one type of charge from another. If protons are negatively charged and electrons are positively charged their mutual interactions will remain the same. However their interactions with some particles like mesons , positrons and some others will change . Such changes in behaviour may affect the world negligibly.

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ANSWER

Electric potential energy

Posted by Dk Gaud 7 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What happens when two trains are running and are between these two trains?

Posted by Sahil Bhai Patre 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Isha Ahuja 7 years, 4 months ago

1st makw ur question understand Make it clear

1Thank You

ANSWER

Two charges +e and +4e are at 'a' distance apart and another charge Q is kept between the line joining the two charges.where should the charge Q be kept in such the entire system is in equilibrium and also calculate the sign and magnitude of the charge Q.

Posted by Dharmender Khapra 7 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

All formula for class 12 physics chapter 1

Posted by Jagannath Mahanta 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Ashutosh Kumar 7 years, 4 months ago

Ask your teacher bro

1Thank You

ANSWER

What is the angle between the electric field due to electric dipole on axial line to the electric dipole moment

Posted by Vip Mishra 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Shreya Verma 7 years, 4 months ago

It is 0° because the direction of electric field lines is same as of the electric dipole.

3Thank You

ANSWER

What is the angle between electric field and electric dipole in axial case

Posted by Vip Mishra 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Deepika Praveen 7 years, 4 months ago

The angle between electric dipole moment and electric field on the equatorial line is 180° as both of them are in opposite directions.

2Thank You

ANSWER

Any idea about various forms available for govt. College for BSc.

Posted by Sidharth Verma 7 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

The electric force F exerted by proton on an electron is same in magnitude to the force exerted by an electron on a proton . however the masses of an electron and a proton are different .thus the magnitude of force is

Posted by Zabiya Khatoon 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Priyansh Gairola 7 years, 4 months ago

Electron and proton mass diff only positive and negative..

1Thank You

ANSWER

Derivation of forces in vector form

Posted by Aarti V 7 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

A 10 micro coulamb charge kept at a corner pf a cube then find the net flux associated with

Posted by Shreya Gupta 7 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

why we are always take unit positive charge not take negative to find electric intensity?

Posted by Rohit Sh 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Kanu Priya 7 years, 4 months ago

Because electric current flow from positive to negative. And also positive charge is small sized ; easy to handle and more stabler than heavy and large negative charge .

6Thank You

ANSWER

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