Doubling the potential across a capacitor results in doubling the charge stored, as defined by the equation C = Q/V, where C is capacitance, Q is charge, and V is potential. Capacitance itself is determined solely by the geometry of the capacitor and the dielectric constant of the material between the plates, meaning it remains unchanged regardless of the potential applied. Therefore, the correct answer to the homework question is c) doubling the charge.
PREREQUISITESStudents in introductory physics courses, electrical engineering students, and anyone interested in understanding the fundamentals of capacitors and their behavior in electrical circuits.