Question

A student begins an investigation by preparing a balloon as shown below

He brings Balloon B close to Balloon A. The two balloons push apart. What
conclusion can this student draw from his observation?
A) Both of these balloons have no electrical charge.
B) Balloon A is electrically-charged, while Balloon B has no charge.
C) Balloon A and Balloon B have opposite charges
Balloon A and Balloon B have like charges.

Answer 1

If the two push apart, then they have like charges. This is because opposites attract and like charges repel (push away). If other explanation is required, tell me in the comments and I’ll help! Hope this helps though!