Electrostatic Induction
Physics ⇒ Electricity and Magnetism
Electrostatic Induction starts at 10 and continues till grade 12.
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See sample questions for grade 10
A metal sphere is charged by induction and acquires a charge of +5 μC. If the sphere is then grounded, what will be its final charge?
A metal sphere is charged by induction using a negatively charged rod. What is the sign of the charge left on the sphere if the ground is removed before the rod?
A metal sphere is initially neutral. A negatively charged rod is brought near it, and the sphere is grounded. If the rod is removed before disconnecting the ground, what will be the final charge on the sphere?
A metal sphere is initially neutral. A positively charged rod is brought near it, and the sphere is grounded. If the ground is removed before the rod, what will be the final charge on the sphere?
A metal sphere is suspended by an insulating thread. A negatively charged rod is brought near it, and the sphere is momentarily grounded. What is the final charge on the sphere after the rod and ground are removed?
A positively charged rod is brought near a neutral metal sphere. If the sphere is then grounded, what type of charge will remain on the sphere after the rod and ground are removed?
Describe the difference between charging by conduction and charging by induction.
Describe the role of grounding in the process of charging by induction.
Describe what happens to the electrons in a metal sphere when a negatively charged rod is brought near it.
Describe what would happen if a charged object is brought near two touching metal spheres and then removed after separating the spheres.
Explain why a charged balloon can attract small pieces of paper even if it does not touch them.
Explain why a neutral conductor does not remain neutral when a charged object is brought near it and the conductor is grounded.
Explain why a neutral metal rod can be attracted to both positively and negatively charged objects.
Explain why grounding is necessary to permanently charge a conductor by induction.
What happens to the charges in a conductor when a positively charged object is brought near it?
What is electrostatic induction?
