Question

which of the following might make the spoons repel each other? a) neither a nor b is electrically charged. b) both a and b are negatively charged. c) a is positively charged, and b is negatively charged. d) a is negatively charged, and b is not electrically charged.

Explanation:

Step1: Recall charge - interaction principle

Like - charges repel each other. That is, two positively charged objects or two negatively charged objects will repel.

Step2: Analyze each option

a) One charged and one un - charged won't repel.
b) Un - charged objects don't repel.
c) Oppositely charged objects attract, not repel. Only when both objects have the same type of charge (both positive or both negative) will they repel. But this option has opposite charges. None of the given options is correct as written. However, if we assume the intention was to have a correct option related to repulsion, the concept we need is that both objects should have the same charge.

Answer:

None of the above options are correct based on the principle that like - charges repel. If we were to have a correct option, it should state that both A and B have the same type of charge (both positive or both negative).