Positive Charge Induction on Insulating Sphere

[freeofwork]

Homework Statement

By what method will a positively charged rod produce a negative charge on a conducting sphere that is placed on an insulating surface.

Homework Equations

a) by means of conduction b) by means of induction c) by means of convection d) none of the choice are correct

The Attempt at a Solution

I am guessing d because the rod will only be able to polarize... and if it was conducted the negative charge would flow to the rod which will leve the sphere positive...

 

[freeofwork]

really 385 views and no response...?

 

[tiny-tim]

hi freeofwork

well, it's obviously not conduction or convection, and i don't think it comes within the strict definition of induction, so that does leave d)