What has to be true about the net charge on object to get them to repel (push apart)? They both have the SAME net charge: could be both positive OR both negative. They both have the OPPOSITE net charges: one positive and one negative They both have the SAME net charge: negative. They both have the SAME net charge: positive.

Question

What has to be true about the net charge on object to get them to repel (push apart)? They both have the SAME net charge: could be both positive OR both negative. They both have the OPPOSITE net charges: one positive and one negative They both have the SAME net charge: negative. They both have the SAME net charge: positive.

Answer 1

In the concept related to electrostatics, two like charges repel (∴ both positive or both negative charges will repel each other). Two opposite charges are attracted to each other. So, for objects to repulse or "push around," both must have identical charges. This matches with option 1 (both charges being positive) or option 3 (both charges being negative). However the option that mentions "SAME net charge" without specifying if it is negative or positive (which could be both) also corresponds.

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