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Electric current is defined as flow of positive charges conventionally. Hence when a circuit is completed only the free electrons which can flow ,flow due to generated field. This is equivalent to flow of positive charges in opposite direction . But the positive charges actually do not flow .

2Thank You

Abhinav Sharma 7 years, 2 months ago

Actually the convention here is that the electric current here is treated as positively charged , and because of this out flows opp to the direction of elections.

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ANSWER

E=v/l is which formula of electric field for what kind of conductor

Posted by Sahijbir Kaur 7 years, 2 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Conductirs electricity in liquid

Posted by Gaurav Gupta 7 years, 2 months ago

CBSE > Class 12 > Physics

1 answers

Mukesh Gupta 7 years, 2 months ago

Ions

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ANSWER

From where jee mains questions come and how to prepare for good score in jee mains

Posted by Rajan Mishra 7 years, 2 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Damping of galvanometer

Posted by Shubham Singh 7 years, 2 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Two point charges 4q and q are seperated by a distance 1m in air .A what point on the line joining the charges is the electric field intensity zero? (b) Also calculate the potential energy of charge if Q = 2* 10-7?

Posted by Varsha Nagar 7 years, 2 months ago

CBSE > Class 12 > Physics

3 answers

Shubham Sharma 7 years, 2 months ago

At 2/3 distance from 4q.

0Thank You

Varsha Nagar 7 years, 2 months ago

Please show me answer

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Varsha Nagar 7 years, 2 months ago

Please tell me solutin

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ANSWER

What is ampere circiutal law i can't get it

Posted by Mansi Sharma 7 years, 2 months ago

CBSE > Class 12 > Physics

1 answers

Anupama Keshri 7 years, 2 months ago

Ampere circuital law is just the same as gausss law.... It is the line integral of magnetic field through the closed path which is equal to meu node times the current penetrating the loop

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ANSWER

Do anyone of you are having quaterly from tommorow

Posted by Mansi Sharma 7 years, 2 months ago

CBSE > Class 12 > Physics

2 answers

Shubham Sharma 7 years, 2 months ago

Not from tommorow but from 12 July

1Thank You

Manan Bedi 7 years, 2 months ago

From 28

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ANSWER

Columbs law for electrical force between two charges and newton law for gravitational force between

Posted by Nikita Purohit 7 years, 2 months ago

CBSE > Class 12 > Physics

2 answers

Aarav Raj 7 years, 2 months ago

Two point charges okay

0Thank You

Ashish Shrivas 7 years, 2 months ago

Two mass particles

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ANSWER

Important topic of all syllabus

Posted by Vineet Dahiya 7 years, 2 months ago

CBSE > Class 12 > Physics

1 answers

Abc A 7 years, 2 months ago

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ANSWER

The sum of two point charges is 7 microcoulomb. they repel each other with a charge of 1N. When kept 30cm apart in free space. Calculate value of each charge

Posted by Sneha Wilson 7 years, 2 months ago

CBSE > Class 12 > Physics

3 answers

Shubham Sharma 7 years, 2 months ago

2 &5 microcoulomb

2Thank You

Aarav Raj 7 years, 2 months ago

Of electrostat

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Aarav Raj 7 years, 2 months ago

Use simple formula

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ANSWER

What is Jurin's law

Posted by Ashish Shrivas 7 years, 2 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

A charged balloon will stick more easily to a con wall or insulating wall

Posted by Harsha Antil 7 years, 2 months ago

CBSE > Class 12 > Physics

4 answers

Harsha Antil 7 years, 2 months ago

Please give suitable reasons for your answers

0Thank You

Aarav Raj 7 years, 2 months ago

It may due to condution

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Amit Dubey 7 years, 2 months ago

Insulated wall.

1Thank You

Abhineet Aanand 7 years, 2 months ago

Insulated

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ANSWER

Why we take sine of the angle in Biot Savart law?

Posted by Home Mallick 7 years, 2 months ago

CBSE > Class 12 > Physics

2 answers

H!Mαη$Hμ Ұαδαυ ✔️ 7 years, 2 months ago

Because we have to take perpendicular distance of point from wire which is sin theta ,,.....watch the diagram carefully and think what is dsin¢

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Pooja Sharma 7 years, 2 months ago

Because this is for small magnetic field so taken small angle and we know that for small angle sin angle tends to its angle value

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ANSWER

Chapter 1 example

Posted by Nikita Purohit 7 years, 2 months ago

CBSE > Class 12 > Physics

2 answers

H!Mαη$Hμ Ұαδαυ ✔️ 7 years, 2 months ago

Write complete question ....

0Thank You

Pooja Sharma 7 years, 2 months ago

What

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ANSWER

Chapter 1 example 1.4

Posted by Nikita Purohit 7 years, 2 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

The electric current has both magnitude and direction but it is not a vector quantity.why?

Posted by Luvkush Thakur 7 years, 2 months ago

CBSE > Class 12 > Physics

1 answers

Hrishikesh Banerjee 7 years, 2 months ago

Because it does not follow the vector addition rule.

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ANSWER

what is image

Posted by Smriti Konwar 7 years, 2 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

How current flows through the conductor

Posted by Deep Yadav 7 years, 2 months ago

CBSE > Class 12 > Physics

3 answers

Aarav Raj 7 years, 2 months ago

Emf apply force on charge to flow in condu

0Thank You

Abhineet Aanand 7 years, 2 months ago

Sorry charges

1Thank You

Abhineet Aanand 7 years, 2 months ago

Due to Flo of changes

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ANSWER

Can anyone help me by telling how tough is the complimentry exam of physics cbse

Posted by Harshraj Jadav 7 years, 2 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What is the difference between mass and weight

Posted by Saurabh Tamar 7 years, 2 months ago

CBSE > Class 12 > Physics

1 answers

Pooja Sharma 7 years, 2 months ago

Mass is actual content of body and weight is mass×9.8 or weight is by gravity

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ANSWER

On changing the position of galvanometer and battery the metre Bridge continue to the be balance and hence no change occur in the balance. Why

Posted by Abhishek Kashyap 7 years, 2 months ago

CBSE > Class 12 > Physics

1 answers

Pooja Sharma 7 years, 2 months ago

Because after doing this it behaves as a balanced wheat stone bridge

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ANSWER

what is meant by the term quantization of charge?

Posted by Jd Kumar 7 years, 2 months ago

CBSE > Class 12 > Physics

3 answers

Pooja Sharma 7 years, 2 months ago

It means charge transfered is integral multiple of e. Charge is not transfered in fraction

0Thank You

Azmat Ali 7 years, 2 months ago

Quantization of charge means " Total charge on a body is equal to the integral multiple of electronic charge " i.e. q= ne Where q = total charge on the body And n = an integer ( 2, 3 etc) And e = charge of an electron / electronic charge .

1Thank You

Abd Fan 7 years, 2 months ago

It means charge on a body is an integral multiple of the electronic charge

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ANSWER

Why does a moving charge experience a force in when placed in magnetic field

Posted by Ishika Shrivastava 7 years, 2 months ago

CBSE > Class 12 > Physics