Why does a positively charged rod attract an uncharged metal sphere without touching it, It induces charge separation in sphere, How does charging by induction leave a conductor negatively charged, Earth allows electrons to enter conductor, Why must the inducing rod remain present during earthing in induction, To maintain charge separation during transfer, What happens to electric field lines around an isolated positive charge, They radiate outward uniformly, What happens to electric field lines around an isolated negative charge, They point inward toward the charge, Why is the electric field strongest near a pointed conductor, Field lines are most concentrated there, How can a gold leaf electroscope distinguish charged from uncharged objects, Leaf divergence shows presence of charge, Why does the leaf of a charged gold leaf electroscope diverge more when touched by a like charge, Like charge increases repulsion in leaf, Why are smoke precipitators effective in reducing chimney emissions, Charged particles are attracted to plates, How does electrostatic paint spraying reduce paint wastage, Charged paint is attracted to object, Why is a fuel tanker fitted with an earth chain, To prevent dangerous static charge buildup, Why can a charged plastic ruler attract small paper pieces, Paper becomes polarized by induction, In a uniform electric field, what determines the force direction on a positive charge, Same direction as field lines, Why does a negatively charged object move opposite to electric field direction, Force on negative charge reverses direction

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