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CBSE Class 12-science Answered

The electric field due to point charge is spherically symmetric.What does it mean  
Asked by varrmasooraj | 18 Mar, 2018, 01:53: PM
answered-by-expert Expert Answer
Electric field is function of radial distance only and independent of any direction. With the point charge as centre if we imagine a sphere of given radius r, then every point on the surface has the same electric field intensity. 
Answered by Thiyagarajan K | 18 Mar, 2018, 03:16: PM

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CBSE 12-science - Physics
A dumbbell consists of two masses A and B each of mass m joined by a light rod of length l with mass B attached to a suspension point O by a light rod of length l as shown in figure. Find the minimum required speed with which mass A to be projected horizontally so that the system completes the vertical circular motion.
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CBSE 12-science - Physics
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CBSE 12-science - Physics
please resolve with good explanation
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CBSE 12-science - Physics
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CBSE 12-science - Physics
if breakdown voltage of each capacitor is 40v ,then maximum applied voltage Vmax will be
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CBSE 12-science - Physics
explain
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CBSE 12-science - Physics
solve option e
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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
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CBSE 12-science - Physics
8212
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