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

Attraction can occur between neutral objects and charged objects due to induction but repulsion only occurs between charged objects so repulsion is a sure test for charge.

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Saumya Agrawal 7 years, 4 months ago

Sure test for what? Positive or negative plz explain me in detail

0Thank You

Abhinav Kalaliya 7 years, 4 months ago

Bcoz attraction may be b/w charged and neutral particle

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ANSWER

Sgfi

Posted by Deepshikha Rawal 7 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Cbse 2011 question set

Posted by Kumar Virat 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Siddharth Khandelwal 7 years, 4 months ago

Not available here

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Obtain expression for electric field due to a point charge&a continuous distribution of charge along a line

Posted by Vana Vankar 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Siddharth Khandelwal 7 years, 4 months ago

Prefer reference books for derivations

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ANSWER

Can we ignore the quantization of electric charge?

Posted by Shubham Wagh 7 years, 4 months ago

CBSE > Class 12 > Physics

3 answers

Princesses Kaur 7 years, 4 months ago

No ......quantization of charge is very important in numerals

1Thank You

Abhinav Kalaliya 7 years, 4 months ago

Yes but at macroscopic level

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Sachin Choudhary 7 years, 4 months ago

Never

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ANSWER

Two point charges +q n -2q are kept d distance apart. find the location of the point related to q at which potential due to this system of charges is zero.

Posted by Sumana Sinha 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Tanishka Gupta 7 years, 4 months ago

At d\3 potential due to this system of charges are 0

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State and derive coulambs law

Posted by Suraj Kumar 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Yugansh Gupta 7 years, 4 months ago

it states that the force of attraction or repulsion between two stationary point charges is directly proportional to product of magnitude of charges and inversely proportional to the square of distance between the charges

1Thank You

ANSWER

What is charge? Real meaning of charge...

Posted by Abhijeet Singh 7 years, 4 months ago

CBSE > Class 12 > Physics

4 answers

Muskan Bajaj 7 years, 4 months ago

It is a fundamental property possessed by a body due to attractive and repulsive forces

1Thank You

Princesses Kaur 7 years, 4 months ago

It is attraction &repulsion between 2 bodies

3Thank You

Yugansh Gupta 7 years, 4 months ago

presence of similar charges causes repulsion. whereas two unlike charges cuses attraction

2Thank You

Yugansh Gupta 7 years, 4 months ago

a charge can be defined as a feeling, that causes attraction or repulsion between the bodies..

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ANSWER

What is difference between current and voltage.why do we say low voltage when light is dim

Posted by Vennila Murali 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Yugansh Gupta 7 years, 4 months ago

cureent is the amount of charges flowing per second whereas voltage is the potential difference beteween two points. we say it low voltage because at that moment the current coming is low, that causes low potential difference.

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ANSWER

What is the direction of electrical field

Posted by Anisha Kushwa Ha 7 years, 4 months ago

CBSE > Class 12 > Physics

3 answers

Tanishka Gupta 7 years, 4 months ago

Direction of electric field is +he to -ve

2Thank You

Princesses Kaur 7 years, 4 months ago

Direction of electric field is negative to positive

1Thank You

Akash Vishwakarma 7 years, 4 months ago

The direction of eletric is intesity direction

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ANSWER

State ohm's law

Posted by Sushant Dhaka 7 years, 4 months ago

CBSE > Class 12 > Physics

2 answers

Sanyam Varshney 7 years, 4 months ago

Potential difference is directly proportional to current , provide it constant that is known as resistance, in short V=IR

1Thank You

Yuvraj Singh 7 years, 4 months ago

V equal tobir

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ANSWER

An electron is rotating around an infinite positive linear charge in a circle of radius 0.1 m, if the linear charge density is 1 micro coloumb per meter then the velocity of electron in m/s will be 1) 0.562 ×10^7 2) 5.62 ×10^7 3) 562 ×10^7 4) 0.0562 ×10^7

Posted by Satnam Singh 7 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

A cylinder of radius R and length L is placed in a uniform electric feild E parallel to the cylinder axis. The outward flux over the surface of the cylinder is given by 1) 2 pie R^2E 2) pieR^2E/2 3) 2pieRLE 4) PIE R^2E

Posted by Satnam Singh 7 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

An electric dipole is places at an angle 60°with an ekectric feipd strength 4×10^5N/C it expeeiences a torque equal to 8root 3 Nm calculate the charge on the dipole if dipole is of length 4 cm

Posted by Satnam Singh 7 years, 4 months ago

CBSE > Class 12 > Physics

2 answers

Satnam Singh 7 years, 4 months ago

Explain me how??? It will come

1Thank You

Aj Style 7 years, 4 months ago

Q=5 × 10^-4

1Thank You

ANSWER

If a boy throws a ball and catch it after 8 seconds. Then what is the initial velocity and maximum height reached by the ball?

Posted by Ankit Khichar 7 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

two plane mirrors are inclined to each other at an angle 70 . A ray of light falls at some angle(i) on the mirror M1 ,falls after reflection from it , on the other mirror M2 from which it gets reflected along a direction parallel to the plane mirror M1 . find the value of angle i

Posted by Deepanshu Rohilla 7 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Point charges each of magnitude Q are placed at three corners of a square as shown in the diagram.what is the direction of the resultant elecrtic field at the fourth corner

Posted by Satnam Singh 7 years, 4 months ago

CBSE > Class 12 > Physics

6 answers

Satnam Singh 7 years, 4 months ago

So pls tell me what i do for diagram

0Thank You

Princesses Kaur 7 years, 4 months ago

Without diagram we dont give u ans

1Thank You

Satnam Singh 7 years, 4 months ago

But how can i upload a diagram

0Thank You

Aryan . 7 years, 4 months ago

How to answer without diagram

1Thank You

Satnam Singh 7 years, 4 months ago

But how can i upload the figure???

0Thank You

Siddharth Khandelwal 7 years, 4 months ago

Diagram missing...!

1Thank You

ANSWER

derive an expression for the work done in rotating an electric dipole from its equillibrium position to an angle xwith uniform electric field

Posted by Abhi Sarowa 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Siddharth Khandelwal 7 years, 4 months ago

For derivations u should prefer a reference book ...!

1Thank You

ANSWER

calculate work done required to move charge of 3 coulomb along equitorial axis of dipole having strength 12 coulomb m

Posted by Abhi Sarowa 7 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Explain the coulomb`s law please

Posted by Manglaram Gurjar 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Isha Negi 7 years, 4 months ago

It's states that the force of attraction and repulsion between two charge particles is directly proportional to product of their charges and inversely proportional to the square of distance between them.

1Thank You

ANSWER

How to make solar panel

Posted by Prasant Soni 7 years, 4 months ago

CBSE > Class 12 > Physics