Physics
Conductors and Insulators
Practice questions
When a charged object is brought near a conductor without touching it, what is the redistribution of charges in the conductor called?Why does electrostatic induction occur easily in a conductor?In electrostatic equilibrium, what is the direction of the electric field just outside the surface of a conductor?Why does excess charge reside on the outer surface of a conductor in electrostatic equilibrium?A glass rod is generally what type of material?Under ordinary conditions, aluminium is what type of material?In which type of material are electric charges mainly bound to atoms or molecules?Why are metal wires mainly used to conduct electric current?Plastic, rubber, and glass are common examples of which category?Copper, silver, and aluminium are common examples of which category?In electrostatic equilibrium, the electric field at a point inside a conductor is zero. What is the electric force on a test charge placed at that point?When a conductor is charged, why does excess charge redistribute over its outer surface at electrostatic equilibrium?Why does charge deposited on an insulator often remain near the place where it was given?Which property of a conductor is useful in electrostatic shielding?Why can a person sitting inside a car with an enclosed metal body be relatively safe during lightning?In which material is excess charge most likely to redistribute rapidly when given to it?In which material can deposited charge remain localized near the region where it is placed?Free movement of charge is a property of which material?The inability of charge carriers to move freely is a characteristic of which material?Why can the charge on a metal object decrease when it is touched by hand?