How parallel capacitance works
Parallel capacitors have the same voltage across them. Each stores charge in proportion to its capacitance, so their capacitances add directly. Adding a capacitor increases the total capacitance.
Choose two to four capacitors. The 1 V AC source demonstrates current sharing at 1 kHz: the larger capacitor carries more current. These ideal calculations exclude ESR, leakage and voltage-rating limits.
Edit the component values on the canvas, or choose Try in CircuitSim to simulate your circuit.