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

Dispersion is the extent to which a distribution is stretched or squeezed. Common examples of measures of statistical dispersion are the variance, standard deviation, and interquartile range.

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1 ampere current is equivalent to

Posted by Alka Singh 4 years, 2 months ago

CBSE > Class 12 > Physics

2 answers

Sher Singh 4 years, 2 months ago

The current is said to be one ampere when one coulomb of charge passes from cross section of conductor in one second.

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Taranveer Singh 4 years, 2 months ago

Charge of 1 coulomb flows through area of cross section of a conductor for 1 second Simple it is equal to 1coulomb per second

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Sab subject ka syllabus aagya h download karlo

Posted by Ranger King 4 years, 2 months ago

CBSE > Class 12 > Physics

3 answers

Ranger King 4 years, 2 months ago

Welcome ?

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Royal Thakur ? 4 years, 2 months ago

Thanks for the info ..

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Ranger King 4 years, 2 months ago

Class12 term1 and term2

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Why is the Wheatstone bridge better than the other methods of measuring resistances?

Posted by Shruti Sharma 4 years, 2 months ago

CBSE > Class 12 > Physics

1 answers

Neeraj Devta 4 years, 2 months ago

Because it uses null method.... In this bridge is balanced, no current will flow through galvanometer.We can easily measure the unknown resistance If 3 values are there

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Derive ecpression of normal shift

Posted by Utkarsh Singh 4 years, 2 months ago

CBSE > Class 12 > Physics

1 answers

Sia ? 4 years, 2 months ago

here OI' is normal shift of object.
Let OA = x,
then from Snell's law,
AI1 =
so, the object distance for the refraction at surface EF is BI1 =
so, applying Snell's law at the surface EF,
BI' =
so, shift OI' = (AB + OA) - BI'
= (t + x) -

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What is Gausns law

Posted by Snehil J@@T 4 years, 2 months ago

CBSE > Class 12 > Physics

5 answers

? Royal Thakur ? 4 years, 2 months ago

Your*

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? Royal Thakur ? 4 years, 2 months ago

You Were clearing the doubts in the questions below too..?

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Snehil J@@T 4 years, 2 months ago

Bro i am not doing that I actually dont' know this so asked the question. Anyone give answer

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? Royal Thakur ? 4 years, 2 months ago

Means you will improve
I have to report you .

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? Royal Thakur ? 4 years, 2 months ago

Means you will improve
I have to report you

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Potential in a closed surface

Posted by Km. Sonam 4 years, 2 months ago

CBSE > Class 12 > Physics

1 answers

Sher Singh 4 years, 2 months ago

The potential remains constant in the closed surface.

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Conduction?....."""friction?????

Posted by ᵐꜞᔆᔆ᭄ Qᴜᴇᴇɴ✿࿐꧂ : ꨄ︎•, 4 years, 2 months ago

CBSE > Class 12 > Physics

2 answers

? Royal Thakur ? 4 years, 2 months ago

stop your nonsense and get out from here
either I am gonna report you

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Snehil J@@T 4 years, 2 months ago

Pls sona bta do ?

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Using Gauss's law, show that the electric field inside a conductor is zero.

Posted by Ashish Sharma 4 years, 2 months ago

CBSE > Class 12 > Physics

2 answers

Sher Singh 4 years, 2 months ago

Inside Gaussian surface,the charge is zero so net electric field is also zero inside the conductor. {E.ds=q/£•

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Taranveer Singh 4 years, 2 months ago

Because inside the Gaussian surface there is no charge enclosed so inside the conductor electric field is zero

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?Find the expression for magnetic field at a point on the axis of a circular coil and reduce it for point on the centre of the circular coil?(4)

Posted by Palak Chauhan 4 years, 2 months ago

CBSE > Class 12 > Physics

1 answers

Palak Chauhan 4 years, 2 months ago

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b)What kind of trajectory is followed by a charged particle in a magnetic field when its velocity is at right angle to magnetic field? Find the radius and time period of the path described by the charged particle.

Posted by Palak Chauhan 4 years, 2 months ago

CBSE > Class 12 > Physics

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Positively charged rod having uniform linear charge density lambda

Posted by Sneha Agarwal 4 years, 2 months ago

CBSE > Class 12 > Physics

1 answers

Sia ? 4 years, 2 months ago

A positively charged rod having uniform linear charge density lambda C/m all over it, is placed in a hypothetical cube of edge l with the centre of the cube at one end of the rod.

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Sona

Posted by Snehil J@@T 4 years, 2 months ago

CBSE > Class 12 > Physics

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A long wire of uniform cross-section and 200 resistance is used in a potentiometer. The wire is connected in series with a battery of 5 V a long with an external resistance of 4800 if an unknown emf E is balanced at 6mlength of the wire, calculate a)the potential gradient of the wire and (b)the value of the unknown

Posted by Palak Chauhan 4 years, 2 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

State columb's law in vector form

Posted by Utkarsh Pareek 4 years, 2 months ago

CBSE > Class 12 > Physics

2 answers

Sia ? 4 years, 2 months ago

Coulomb's law states that the electrostatic force between two point charges is directly proportional to the product of charges and inversely proportional to the square of distance between them.

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Tajinder Singh 4 years, 2 months ago

F = 1/4π€o . Q1 Q2 / r^2

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Sona kha milta h

Posted by Snehil J@@T 4 years, 2 months ago

CBSE > Class 12 > Physics

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Which of the following statement is false for a perfect conductor (a) the surface of the conductor is in equipotential surface. (b) the electric field just outside the surface of a conductor is perpendicular to the surface. (c) the charge is carried by a conductor is always uniformly distributed over the surface of the conductor. (d) none of these.

Posted by Bhumika Agrawal 4 years, 2 months ago

CBSE > Class 12 > Physics

2 answers

Bhumika Agrawal 4 years, 1 month ago

But amorphous solid is not available in option

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Baba Ruchake 4 years, 2 months ago

Amorphous solids

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Positively charged particle is released from rest it in uniform electric field. The electric potential energy of the charge (a) remains constant because the electric field is uniform. (b) increase because charge moves along the electric field. (c) decrease because the charge moves along the electric field. (d) decrease because the charge moves opposite to the electric field

Posted by Bhumika Agrawal 4 years, 2 months ago

CBSE > Class 12 > Physics

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Gauss’s law will be invalid if A. There is magnetic monopoles B. The inverse square law is not exactly true C. The velocity of light is not universal constant D. None of these

Posted by Bhumika Agrawal 4 years, 2 months ago

CBSE > Class 12 > Physics

2 answers

Sia ? 4 years, 2 months ago

The inverse square law is not exactly true

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Bhumika Agrawal 4 years, 1 month ago

Thank you Sia

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مناسب جوابات کے ساتھ خالی جگہیں بھریں: اگر ہوا میں بند سطح پر داخل ہونے اور چھوڑنے والا بجلی کا بہاؤ بالترتیب 2 اور ہے تو ، خالص برقی چارج سطح کے اندر منسلک ہے۔

Posted by Debraj Das 4 years, 2 months ago

CBSE > Class 12 > Physics

1 answers

Dhruv .. 4 years, 2 months ago

Ye kya bawasir hai.....yaha terrorist language nahi use krna hai.

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Pls physics dont' be so rude to me ? . Why physics is tougher.

Posted by Snehil J@@T 4 years, 2 months ago

CBSE > Class 12 > Physics

1 answers

Snehil J@@T 4 years, 2 months ago

Hii Sona . Kya yaar kitne din ho gye apse baat kre.

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Why physics is more tougher

Posted by Snehil J@@T 4 years, 2 months ago

CBSE > Class 12 > Physics

5 answers

Yashasvi Jain 4 years, 2 months ago

It is due to more derivation and lots of formula

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Snehil J@@T 4 years, 2 months ago

Kha the app

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Snehil J@@T 4 years, 2 months ago

Hii sona

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ᵐꜞᔆᔆ᭄ Qᴜᴇᴇɴ✿࿐꧂ : ꨄ︎•, 4 years, 2 months ago

Hlo

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Sia ? 4 years, 2 months ago

find physics difficult because they have to compete against different representations such as experiments, formulas and calculations, graphs, and conceptual explanations at the same time. Student's views about physics and their difficulties of understanding need to be realized by faculty.

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Two particles with equal charge magnitudes 2.0 x 10-7 C but opposite signsare held 15 cm apart. What are the magnitude and direction of the Electric Field E at the point midway between the charges?

Posted by Princy Shilshi 4 years, 2 months ago

CBSE > Class 12 > Physics