Answer :
Final answer:
An insulating wall with low electrical conductivity could cause a negatively charged balloon to stick, as the balloon's charge induces a positive polarization in the wall's surface, leading to an attractive force. c) Low electrical conductivity
Explanation:
The characteristic of the wall that could cause the negatively charged balloon to stick to it is c) Low electrical conductivity.
This is because materials with low electrical conductivity, also known as insulation materials, do not allow charges to move through them. Examples of such materials include glass or a dry wall. These insulators keep the charges on their surface.
A negatively charged balloon will stick to these surfaces because it causes what is known as polarization in the wall. The negative charge of the balloon repels the electrons in the atoms of the wall, making them move away. This leaves the surface of the wall closer to the balloon with a positive charge, causing the balloon to be attracted and stick to the wall.
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