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CBSE Class 12 Physics Set- III Solved Question Paper 2012

Dec 1, 2012 11:59 IST

CBSE Physics Set- III Solved Question Paper 2012, given here.

Q.1Why is the potential inside a hollow spherical charged conductor constant and has the same value as on its surface?

Ans.1 There is no electric field inside a shell. Potential is the amount of work done in moving a test charge, and since the field is absent inside the shell, the potential is constant inside it.

To get the CBSE class 12th NCERT SOLUTIONS, Click Here

Q.2A magnetic needle free to rotate in a vertical plane orients itself vertically at a certain place on the Earth. What are the values of (i) horizontal component of Earth’s magnetic field and (ii) angle of dip at this place?

Ans.2 A magnetic needle orients itself vertically on poles. Hereboth (i) horizontal component of Earth’s magnetic field is zero. (ii) angle of dip is zero.

To get complete Solved paper Click Here

To get complete unsolved Question paper Click Here

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6 Comment


very good site

dhilruba ,

this site is very useful for students preparing for board exam.

yusuf shaikh,

Very helpful to understand marking pattern of CBSE.

mariha murmu,

cbse solved paper

subhash chand sharma,

please send the test paper


thank u

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