Question

Does the capacitance of a device depend on the applied voltage? What about the charge stored in it?

1) Yes, the capacitance of a device depends on the applied voltage and the charge stored in it.
2) No, the capacitance of a device does not depend on the applied voltage but it does depend on the charge stored in it.
3) Yes, the capacitance of a device depends on the applied voltage but it does not depend on the charge stored in it.
4) No, the capacitance of a device does not depend on the applied voltage or the charge stored in it.

Answer 1

Capacitance does not depend on the applied voltage or the charge stored; it is a fixed physical characteristic based on the geometry and materials of the capacitor. The charge stored varies with voltage.

Step-by-step explanation:

The capacitance of a device is an inherent physical property that does not depend on the applied voltage; the correct answer is option 4. Capacitance depends solely on the physical characteristics and the geometry of the capacitor, such as the surface area of its plates, the distance between them, and the type of dielectric material used (if any).

While capacitance itself does not change with the applied voltage, the charge stored in a capacitor does depend on the voltage. According to the relationship C = Q/V, where C is the capacitance, Q is the charge, and V is the voltage, the charge stored (Q) in a capacitor increases linearly with an increase in voltage (V), so long as the capacitance (C) remains constant.