learn.uark.edu Homework 2- PHYS 2074-UNIVERSITY Take Test: Multiple-Choice Homew

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learn.uark.edu Homework 2- PHYS 2074-UNIVERSITY Take Test: Multiple-Choice Homework 2 Spring 2018- PHYS... Search Textbook Solutions Chegg.com Question Completion Status: QUESTION 4 0.4 points Save Answer A positively charged rod is brought near, without touching, an initially neutral conducting sphere. The sphere is then grounded with the rod near. The rod is, then, removed to a distance. After the rod is removed the connection to ground is removed. What is the charge of the sphere after the ground is disconnected? Select One of the Following (a) approximately zero (b) positive (c) negative Answer (a) Answer (tb) Answer () QUESTION 5 0.4 points Save Answer When a positively charged object is brought near (without touching) a neutral insulator, the insulator polarizes and develops regions on its surface with a non-zero surface charge density. What is the total charge of the polarized insulator? No charge is transferred from the charged object to the insulator Select One of the Following: Click Save and Submit to save and submit. Click Save All Answers to save all answers Save All Answers Close Window Save and Submit

Explanation / Answer

Here ,

when the positively charged is brought near to the sphere

the surface of sphere closer to the rod will be negatively charged

and the positive charges are induced on the other side

when it is grounded , the positive charge will flow to the ground

hence , there will be a net negative charge induced

hence , the correct option is c) negative

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