Questions
Figure shows equipotential surfaces concentric at ‘O’, the magnitude of electric field at distance r (in meter) measured from O
detailed solution
Correct option is B
V at 10 cm=14πε0qr ; 60=14πε0q0.1q4πε0=60×0.1 --1E at r=14πε0qr2 ; E(r)=60 x 0.1r2=6r2 V/mTalk to our academic expert!
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Two parallel plates separated by a distance of 5 mm are kept at a potential difference of 50 V. A particle of mass 10-15 kg and charge 10-11 C enters in it with a velocity 107 m/s. The acceleration of the particle will be
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