Solid objects become positively charged by

• A. Losing electrons
• B. Gaining protons
• C. Losing protons
• D. Gaining electrons

Answer: (A)

Positive charge appears when there are more protons than electrons, because electrons carry negative charge. When a solid loses electrons, it loses some of its negative charge, leaving behind the positive charges of the remaining protons. The result is a net positive charge. Gaining electrons would add negative charge, not positive. Protons are bound in the nucleus and aren’t the typical way objects gain charge in everyday processes, so changing protons isn’t how charging usually happens.