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

This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

Few rules to keep homework help section safe, clean and informative.

Don't post personal information, mobile numbers and other details.
Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
Be nice and polite and avoid rude and abusive language. Avoid inappropriate language and attention, vulgar terms and anything sexually suggestive. Avoid harassment and bullying.
Ask specific question which are clear and concise.

Remember the goal of this website is to share knowledge and learn from each other. Ask questions and help others by answering questions.

0Thank You

ANSWER

(a) define electric flux . Is it a scalar quantity ? A point charge q at distance d/2 directly above the centre of a square of side d as shown in figure use gauss law to obtain expression for the electric flux through square ..

Posted by Arjun Chauhan 2 years, 3 months ago

CBSE > Class 12 > Physics

2 answers

Sneha Sharma 2 years, 3 months ago

Electric Field lines passing through any closed surface area perpendiculary is called flux

0Thank You

Riya Shukla 2 years, 3 months ago

Field lines passing through any closed surface is called flix. Yes

1Thank You

ANSWER

The magnetic flux through a coil perpendicular to its plane and direct into vapour is very according to the relation 5 is equal to t square + 40t + 6 milliampere find the Induce emf in the coil at t=4 s

Posted by Mohit Mohan Mohapatra 2 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Rms

Posted by Purushottam Raj 2 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Anshu Bharti 2 years, 3 months ago

Root mean square

0Thank You

ANSWER

A straight wire care caring a current of 12 a is banned into a semicircular arc of radius 2.0 CM as shown in figure 4.1 a considered the magnetic field B at the centre of the arc a number what is the magnetic field due to the street segments the number in what way the contribution to be from the semi circle differs from that of a circular loop and in what way does it resemble see number would you answer me different arc of the same radius but in the opposite way as shown in figure 4.1

Posted by Khushbu Ara Sultana 2 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Do relative permittivity and dielectric constant …

Posted by Nittin Mittal 2 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Two tiny fair carrying charge 1.5 UC and 2.5 UC are located 30 cm apart find the potential and electric field at the midpoint of the line joining the two charges

Posted by Vamika Sharma 2 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Self induced

Posted by Lalin Kaushik 2 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Give me some questions related to drift velocity and current density

Posted by Chotu Lilliput 2 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Shivansh Pandey 2 years, 3 months ago

Derive the relation between drift velocity and current density.

3Thank You

ANSWER

Write the expression for magnetic force per unit length between two long straight parallel conductors carrying current. Give the nature of force between two parallel conductors carrying current in same direction.

Posted by Jyotsna Dange 2 years, 4 months ago

CBSE > Class 12 > Physics

2 answers

Shivansh Pandey 2 years, 3 months ago

Nature Attractive

0Thank You

Vaishnavi Verma 2 years, 4 months ago

f12/l= u0 2 i1i2/4 pi d it is attractive if both conductor current flows in same direction and it is repulsive if is flows in opposite direction

0Thank You

ANSWER

Three forces 3 N 5 N and 4N acting simulatenously calculate resultant magnitude and direction

Posted by Ayush Mishra 2 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Define dielectric constant.

Posted by Himanshi Pandey 2 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Himan Shu 2 years, 3 months ago

Challenge krna chahoge

1Thank You

ANSWER

Assertion : Voltmeter is connected in parallel combination. Reason : Voltmeter has very large resistance

Posted by Adesh Kesharwani 2 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Mayank Rathore 2 years, 4 months ago

Both are true, but voltmeter is connected in parallel to determine the potential different between two points, and hence R is NOT correct explanation of A

0Thank You

ANSWER

Mention the factors on which the fringe width depends

Posted by Akkamahadevi Hiremath 2 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Draw backs of ampere circutor law

Posted by Suhana Samkaria 2 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Sadia Perween 2 years, 4 months ago

It is not universal law

0Thank You

ANSWER

Application of amphere circutal law

Posted by Sowmya Jami 2 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

State ohms law and explain about resistivity limitations

Posted by Sowmya Jami 2 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Sachin Yadav 2 years, 4 months ago

211450-35889

0Thank You

ANSWER

Show that the current lags voltage by a phase difference of π/2 radians when ac is connected to a indicator. Write with language

Posted by Sohimla Rai 2 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Realtionship between electric current and relaxation time

Posted by Amna Qutub 2 years, 4 months ago

CBSE > Class 12 > Physics

2 answers

Dhruv Sahu 2 years, 4 months ago

Directly proportional to relaxation time and inversely to mass of é

0Thank You

Riya Gupta 2 years, 4 months ago

CURRENT IS DIRECTLY PROPORTIONAL TO RELAXATION TIME .

1Thank You

ANSWER

Biot severt law derive

Posted by Divyansh Yadav 2 years, 4 months ago

CBSE > Class 12 > Physics

3 answers

Divyansh Yadav 2 years, 3 months ago

Don't post personal information, mobile numbers and other details.
Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
Be nice and polite and avoid rude and abusive language. Avoid inappropriate language and attention, vulgar terms and anything sexually suggestive. Avoid harassment and bullying.
Ask specific question which are clear and concise.

Remember the goal of this website is to share knowledge and learn from each other. Ask questions and help others by answering questions.

0Thank You

Dhruv Sahu 2 years, 4 months ago

Formula ratio derivation 12th level pe nahi he

0Thank You

Priya Kumari 2 years, 4 months ago

Bro tm kisi online tution kar rahe ho kya biotech ka I need biotech tution

1Thank You

ANSWER

What is gauss therom

Posted by Samir Kumar 2 years, 4 months ago

CBSE > Class 12 > Physics

2 answers

Suhana Samkaria 2 years, 4 months ago

Phi Ē.dĀ=charge enclosed(q enc)/E↓⁰ ( absolute permittivity) (obsilen not) pronouncition

0Thank You

Mansi Nautiyal 2 years, 4 months ago

Gauss theorem states that the net electric flux through a closed surface is equal to the total or net charge enclosed by the closed surface divided by the permittivity of the medium.

0Thank You

ANSWER

What is ampere circuital law

Posted by Shivam Kr 2 years, 4 months ago

CBSE > Class 12 > Physics