Problem 6: When charging a metal conducting object by induction, a charged insul
ID: 2285858 • Letter: P
Question
Problem 6: When charging a metal conducting object by induction, a charged insulating rod is bought near, but does not touch, the object to be charged. What is the purpose of the charged rod if it does not touch the metal? [Select One of the Following) (a) to allow charge to jump through the air and onto the conductor (b) to hold the like charge on the conductor in place (c) to hold the opposite charge on the conductor in place (d) to cause the charge to spread evenly through the conductor (e) to remove the protons from the conductor Problem 7: A positively charged rod is brought near, without touching, an initially neutral conducting sphere The sphere is then grounded with the rod nearby. Does the sphere have a net charge after grounding? If so, what is the sign of the charge of the sphere after grounding? Select One of the Following: (a) The sphere has zero net charge after grounding (b) The sphere has a net positive charge after grounding (c) The sphere has a net negative charge after grounding Problem 8: A positively charged rod is used to charge a metal sphere by induction. What is the sign of the charge transferred to ground in the process? Select One of the Following: (a) positive (b) negative (c) No charge is transferred to ground while charging the sphere by induction.Explanation / Answer
6) c) to hold the opposite charges on conductor in place
7) c) the sphere has a net negative charge after grounding
8) a) positive