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

Acc.to it "if we hold a current carrying conductor in such a way that tha thumb of right hand points the drctn. Of current then the curling of fingers gives the drctn. Of mag. Lines if force."

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What is right hand palm rule ?

Posted by Piyush K 7 years, 6 months ago

CBSE > Class 12 > Physics

0 answers

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Show with the help of suitable example along with the figure that the total our ward flux due to a point charge q in vaccume with a closed surface is independent of its size or shape and is given by q/e0

Posted by Divya Singh 7 years, 6 months ago

CBSE > Class 12 > Physics

0 answers

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What are some important derivations

Posted by Sharma Saabh 7 years, 6 months ago

CBSE > Class 12 > Physics

1 answers

Madhav Rathod 7 years, 6 months ago

YOU CAN SEE HERE https://drive.google.com/file/d/17Je4xmoIIR8U0vydG8AEpmUkI8W-Oj-x/view

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Principles which can be asked in exam...

Posted by Sharma Saabh 7 years, 6 months ago

CBSE > Class 12 > Physics

5 answers

Madhav Rathod 7 years, 6 months ago

YOU CAN SEE HERE https://drive.google.com/file/d/17Je4xmoIIR8U0vydG8AEpmUkI8W-Oj-x/view

0Thank You

Namami Shukla 7 years, 6 months ago

Yeah...... exactly

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Radhika Tyagi 7 years, 6 months ago

These are derivations nt principles

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Khyati Dave 7 years, 6 months ago

Electric dipole, magnetic field due to current carrying coil placed at a distance r from the center of the coil, magnetic field of toroid, etc

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Radhika Tyagi 7 years, 6 months ago

Transformer, Potentiometer, cyclotron, MCG...

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what are the impotant principles of phys...

Posted by Sharma Saabh 7 years, 6 months ago

CBSE > Class 12 > Physics

1 answers

Madhav Rathod 7 years, 6 months ago

https://drive.google.com/file/d/17Je4xmoIIR8U0vydG8AEpmUkI8W-Oj-x/view

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ANSWER

Why magnetic field in moving coil galvanometer is in radial form

Posted by Manjeet Shekhawat 7 years, 6 months ago

CBSE > Class 12 > Physics

5 answers

Jass Mangla 7 years, 6 months ago

Khyati has given more appropriate ans

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Radhika Tyagi 7 years, 6 months ago

0Thank You

Namami Shukla 7 years, 6 months ago

Yeah...ayushi is right..

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Khyati Dave 7 years, 6 months ago

Bcoz it is a field in which coil of the galvanometer always remain parallel to the field even on large deflection.

1Thank You

Radhika Tyagi 7 years, 6 months ago

In order to show maximum deflection

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What happens if the Galvanometer and cell are interchanged at the balance point of the bridge

Posted by Saksham Sawarna 7 years, 6 months ago

CBSE > Class 12 > Physics

1 answers

Radhika Tyagi 7 years, 6 months ago

Nothing wud happen... Everything remains same

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Does refracting telescope and astronomical telescope are same?

Posted by Naman Gupta 7 years, 6 months ago

CBSE > Class 12 > Physics

4 answers

Vineet Kumar Gupta 7 years, 6 months ago

three type of telescopes are there . reflecting ,refracting ( astronomical ) and casagarian telescope

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Vineet Kumar Gupta 7 years, 6 months ago

both are same

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Khyati Dave 7 years, 6 months ago

What's the difference between the two.. Can you please elaborate?

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Saksham Sawarna 7 years, 6 months ago

No..

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Sn,C , Si and Ge are all group 14 elements .Yet ,Sn is a conductor , C is a insulator while Si and Ge are semi conductors . Why?

Posted by Komal Patel 7 years, 6 months ago

CBSE > Class 12 > Physics

3 answers

Harshit Tiwari H 7 years, 6 months ago

Periodic table me neeche aane par metallic character badhta hai

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Gaurav Yadav 7 years, 6 months ago

It's based on their band energy gaps

1Thank You

Madhav Rathod 7 years, 6 months ago

The four valence electrons of C are present in second orbit while Si has in third orbit. So energy required to extract electron from Si is smaller than that of C. So no. Of free electron in Si is more than C. This makes Si conductivity much higher than C.

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What is polarization

Posted by Vipin Kumar 7 years, 6 months ago

CBSE > Class 12 > Physics

1 answers

Saksham Sawarna 7 years, 6 months ago

The phenomenon of restricting the vibrations of light in a particular direction perpendicular to the direction of wave motion is called polarisation of light

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What is interference of light?

Posted by Aparna Sharma 7 years, 6 months ago

CBSE > Class 12 > Physics

3 answers

Namami Shukla 7 years, 6 months ago

Thnku so much....

0Thank You

Radhika Tyagi 7 years, 6 months ago

Very gud ans... ????

1Thank You

Namami Shukla 7 years, 6 months ago

When two waves of same frequency and constant initial phase difference i.e. when waves from coherent sources travel in the same direction along a straight line simultaneously they superpose in such a way that the intensity of the resultant wave is maximum at certain points and minimum at certain other points.The phenomenon of redistribution of intensity due to superposition of two waves of same frequency and constant phase difference is called interference.

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Why thick copper strip are used in MCG

Posted by Aakib Rao 7 years, 6 months ago

CBSE > Class 12 > Physics