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CBSE Class 12-science Answered

Q - 8
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Asked by majethiyarishat9566.12sdatl | 28 May, 2020, 12:26: AM
answered-by-expert Expert Answer
F o r space c h a r g e s space t o space b e space i n space e q u i l i b r i u m space t h e space n e t space f o r c e space c h a r g e s space m u s t space b e space z e r o L e t s space t a k e space t h e space f o r c e space o n space a space c h a r g e space q F i r s l y space t h i s space c h a r g e space q space s h o u l d space b e space p l a c e d space i n space b e t w e e n space 4 q space a n d space 2 q space t h e n space o n l y space i t space w i l l space m a k e space t h e space s y s t e m space s t a b l e l e t s space s a y space t h i s space c h a r g e space q space i s space p l a c e d space a t space a space d i s tan c e space l space f r o m space t h e space c h a r g e space 4 Q space S o fraction numerator K 4 Q q over denominator L squared end fraction equals fraction numerator K 2 Q q over denominator open parentheses x minus L close parentheses squared end fraction 2 open parentheses x minus L close parentheses squared equals L squared right parenthesis n space S o l v i n g L equals fraction numerator x square root of 2 over denominator open parentheses 1 plus square root of 2 close parentheses end fraction equals 0.586 x i. e space a t space 0.586 x space f r o m space 4 Q
Answered by Utkarsh Lokhande | 28 May, 2020, 04:10: AM

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CBSE 12-science - Physics
solve option e
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Asked by dasrituparna1999 | 13 Apr, 2024, 06:56: AM
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CBSE 12-science - Physics
The number of moles in an elemental sample is just the ratio of the mass m to atomic mass 4. n= A The number of protons N, in an elemental sample is Z (atomic number) times the number of moles of Avogadro's number NA N=ZnN P A Copper has an atomic mass of 63.5 g/mole and 29 protons per atom. If such an atom were neutral, then it would have as many protons as electrons. If you remove electrons from a neutral state, then you get a net positive charge. Given a 54 gram ball of copper with a net charge of 2.2 µC, what fraction of the copper's electrons have been removed?
Asked by dasrituparna1999 | 12 Apr, 2024, 09:26: PM
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CBSE 12-science - Physics
which answer is correct and most appropriate with explanation
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Asked by mishrigupta19319 | 08 Apr, 2024, 06:28: PM
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CBSE 12-science - Physics
8212
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Asked by madhav9119887644 | 07 Apr, 2024, 08:10: PM
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CBSE 12-science - Physics
ans the questions wit reason
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Asked by mishrigupta19319 | 07 Apr, 2024, 11:23: AM
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CBSE 12-science - Physics
I don't know which concept and formula is used
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Asked by adityagalar2007 | 06 Apr, 2024, 01:06: PM
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CBSE 12-science - Physics
what is the mass of the bidy
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Asked by amlanmcob | 06 Apr, 2024, 12:27: PM
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CBSE 12-science - Physics
13./A point charge of 12 µC is located at the centre of a cube of side 1 m. Calculate the electric flux through each face of the cube. (H.S.S.C.E.1999~S) [Ans. 2.26\times10^{5}N~m^{2}C^{-1}]
Asked by hussain221man | 05 Apr, 2024, 08:44: PM
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CBSE 12-science - Physics
A coil of N turns is placed in a magnetic field B such that B is perpendicular to the plane of the coil. B changes with time as B=B0 cos 2元 where T is time period. The magnitude of emf-induced in the coil will be maximum at
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Asked by mishrigupta19319 | 05 Apr, 2024, 12:01: PM
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CBSE 12-science - Physics
a charge of 2microcoulomb experience a force of 6N when placed at a point in an electric field .find electric field at that point
Asked by manishamunda787 | 02 Apr, 2024, 11:07: AM
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