CBSE > Class 11 > Physics | CBSE Board | Homework Help

Coulomb's law in electrostatic states that a charge at rest q1 applies a force F on the other charge q2, also at rest, which are separated by a distance r such that the force is directly proportional to the product of both charges and inversely proportional to the square of the distance between them.

∴ F∝ q₁q₂ and F ∝ 1/ r²1

Thus we get F ∝ q₁q₂/r²

⟹ F = kq₁q₂/r² where k= 1/4πϵ_o

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Ankit jaldi batao kon si app

Posted by King Kohli?❤? 4 years, 3 months ago

CBSE > Class 11 > Physics

2 answers

King Kohli?❤? 4 years, 3 months ago

Iss app per to books hai

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King Kohli?❤? 4 years, 3 months ago

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Ankit jaldi batao

Posted by King Kohli?❤? 4 years, 3 months ago

CBSE > Class 11 > Physics

2 answers

Anjali Yadav 4 years, 3 months ago

Iss app me kya hota hai??

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Dark ..? 4 years, 3 months ago

ncert book (philiod) app

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Integration of 4 and 1 under root x dx

Posted by Aarti Shah 4 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

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Friends

Posted by King Kohli?❤? 4 years, 3 months ago

CBSE > Class 11 > Physics

4 answers

King Kohli?❤? 4 years, 3 months ago

Konsi app

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Lavish Kumar 4 years, 3 months ago

Annu yadav

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King Kohli?❤? 4 years, 3 months ago

Kha gyi

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King Kohli?❤? 4 years, 3 months ago

No Annu yadav

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Notes chapter 2

Posted by Sachin Sirohi 4 years, 3 months ago

CBSE > Class 11 > Physics

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What is the coefficient of static friction called?

Posted by Adya Jha 4 years, 3 months ago

CBSE > Class 11 > Physics

2 answers

Deepak Kumar 4 years, 3 months ago

What is physics

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Yogita Ingle 4 years, 3 months ago

It is “The maximum ratio of applied force to normal force with no motion” we all know Frictional force is a force which opposes motion. If we keenly observe, once you apply force to move a body from rest, there exists a point up to which the body resist to move. To move the body the applied force should be greater to overcome this resistance. This maximum resistive force offered by the body against the applied force to continue its state of motion is called Coefficient Of Static Friction.

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general instructions

Posted by Dark ..? 4 years, 3 months ago

CBSE > Class 11 > Physics

5 answers

Sajal Khandelwal 4 years, 3 months ago

Hi.

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Lavish Kumar 4 years, 3 months ago

Sona tum meri hona

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King Kohli❤? 4 years, 3 months ago

Hi sona

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King Kohli❤? 4 years, 3 months ago

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Lavish Kumar 4 years, 3 months ago

Hello sona

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What is chemistry???

Posted by Aman Dalal 4 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Ashi Isha 4 years, 3 months ago

By simple definition, chemistry is the study of atoms and molecules ??

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Anyone please tell me when schools will reopen?

Posted by Lavish Kumar 4 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Akshi ? 4 years, 3 months ago

May be on 1st September

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The youngs modulus of steel is much more than that for runber. For the same longitudinal strain, which one will have greater tensile stress?

Posted by Shruthika Reddy 4 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

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Determine the maximum acceleration of the train in which a box lying on its floor will remain stationary that the coefficient of static friction between box and the train floor is 0.15

Posted by Aryan Soni 4 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

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A box lying in the compartment of an accelerating train is stationary e related to the train explain???

Posted by Aryan Soni 4 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Lavish Kumar 4 years, 2 months ago

Yes

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If the radius of earth is 640km what will be it's order of magnitude

Posted by Khushi Ojha 4 years, 3 months ago

CBSE > Class 11 > Physics

2 answers

Deep Singer Vekariya 4 years, 3 months ago

Madarchood Teri gannd me mera loda

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Parthiv Patel 4 years, 3 months ago

answer : 10^7 m is the order of magnitude of the radius of the earth. explanation : order of magnitude :- it is used scientific notation. if any number X in such a way that X = m × 10^n , where m belongs to then, 10ⁿ is known as order of magnitude. here given, earth's radius 6400 km it can be written as 6400000m [ as we know, 1 km = 1000m] so, 6400 km = 6400000 m now, 6400000m = 0.64 × 10^7 m here you can see √10/10 ≤ 0.64 ≤ √10 so, 10^7m is the order of magnitude. Thanku

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How can we drive projectile method?

Posted by Karate Champion 4 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Write where physics is used in society

Posted by V. Ramia 4 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Keren R 4 years, 3 months ago

Physics is used in our everyday life .Ex :car moving on the road , people moving and so on .

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What is deffent betweens derived and basic unit

Posted by Aamir Ali 4 years, 3 months ago

CBSE > Class 11 > Physics

2 answers

Aditi. Bains 4 years, 3 months ago

The units that are independent are called fundamental unit The units which are derived from fundamental unit is called derived units

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Yogita Ingle 4 years, 3 months ago

The units which can neither be derived from other units nor they can be further resolved into simpler units are called fundamental units. Examples: Mass, length etc.

Those units which can be expressed in terms of the fundamental units are called derived units. Example: speed, velocity, acceleration etc.

1Thank You

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What is the range of gravitational and electromagnetic force

Posted by Ajay Chaudhary 4 years, 3 months ago

CBSE > Class 11 > Physics

2 answers

Aniket Yadav 4 years, 3 months ago

Gravitional force is 10-39 power Electromagnetic force is 10-2

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Yogita Ingle 4 years, 3 months ago

Name	Relative Strength	Range	Operates among
Gravitational force	10^–39	Infinite	All objects in the universe
Electromagnetic force	10^–2	Infinite	Charged particles

3Thank You

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Find differenciation of 3x^2/sinΦ.

Posted by Vasudha Yadav 4 years, 3 months ago

CBSE > Class 11 > Physics

2 answers

Aravinthan M 4 years, 3 months ago

-6x.sin^-2x

1Thank You

Annu Yadav 4 years, 3 months ago

Hello

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Light year is a unit of time true false

Posted by Boparai Boparai 4 years, 3 months ago

CBSE > Class 11 > Physics

3 answers

Gamed Gamer 4 years, 3 months ago

False

1Thank You

Aditi. Bains 4 years, 3 months ago

False Because light year is distance travelled by light in the one year

1Thank You

Yogita Ingle 4 years, 3 months ago

Light year is the unit of distance and it is the distance covered by the light in time of one year. So the given statement is false.

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Find the dimension x,y,z from the equation a=xt+fty+mt^2z

Posted by Vidya Hosagoudru 4 years, 3 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

a stone at a height of 5 metre is thrown horizontally and falls on the ground it horizontal distance of 10 metre away from where it was thrown what is the velocity of the stone at that point of impact with the ground. (Take g=10m/s sq.

Posted by Priya Jain 4 years, 3 months ago

CBSE > Class 11 > Physics

1 answers

Gautami Patil 4 years, 3 months ago

A body is thrown horizontally from the top of a tower of height 5 m. It touches the ground at a distance of 10 m from the foot of the tower. What is the initial velocity of the body? The only force acting in the vertical direction is the downward force ie. the force of gravity. As the body was thrown horizontally ,hence the initial velocity of the body in downward direction is zero . So ,the time of downward motion can be found using equation: S=ut+1/2at² Where u=0 ,a=g~10 and S=height of the tower =5m So ,time of the downward motion is equal to 1 second. The given range of the body is 10m,as no force is acting in the horizontal direction . Hence ,the velocity of the body in the horizontal direction will not change ie. Initial velocity in x- direction =final velocity in x-direction. Distance travelled= velocity ×time of downward motion . Hence , the initial velocity is equal to 10m/s in horizontal direction.

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