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The electric field strength at a distance r from a charge q is E.what will be electric field strength if the distance of the observation point is increased to 2r?
1. E/2
2.E/4
3.E/6
4.none of these
?
Most Upvoted Answer
The electric field strength at a distance r from a charge q is E.what ...
E(Electric field strength)=F/q....we know...F=1/4πE• q1 q2/r^2....I.e. E is inversely proportional to r^2...E1/E2=(r2)^2/(r1)^2....E1/E2=(2r)^2/r^2....E1/E2=4..E2=E1/4...2nd option...
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The electric field strength at a distance r from a charge q is E.what will be electric field strength if the distance of the observation point is increased to 2r?1. E/22.E/43.E/64.none of these?
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