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CBSE Class 12-science Answered

Find the electrostatic force between tw/o protons placed in free space separated by a distance 20 cm
Asked by Aashu | 10 Apr, 2017, 12:02: PM
answered-by-expert Expert Answer

begin mathsize 12px style Hi space Aashu comma The space electrostatic space force space is straight F equals straight k fraction numerator straight q subscript 1 straight q subscript 2 over denominator straight r squared end fraction equals 9 cross times 10 to the power of 9 cross times open parentheses 1.6 cross times 10 to the power of negative 19 end exponent close parentheses squared over open parentheses 20 cross times 10 to the power of negative 2 end exponent close parentheses squared therefore straight F equals 5.76 cross times 10 to the power of negative 27 end exponent space straight N end style

Answered by | 10 Apr, 2017, 05:52: PM

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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?
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CBSE 12-science - Physics
which answer is correct and most appropriate with explanation
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CBSE 12-science - Physics
8212
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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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CBSE 12-science - Physics
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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}]
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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
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