To increase the total capacitance of a capacitor bank, connect capacitors

To increase the total capacitance of a capacitor bank, connect capacitors

• A. In series
• B. In parallel
• C. In series with a resistor
• D. In parallel with a diode

Answer: (B)

Capacitance adds when capacitors share the same voltage. When you connect capacitors in parallel, each one is across the same voltage, so the charges stored on each add up. The total capacitance becomes the sum of all individual capacitances, C_total = C1 + C2 + …, so adding more capacitors in parallel increases the overall capacitance and thus the energy storage at that voltage. For a capacitor bank, wiring capacitors in parallel is the way to increase total capacitance (and thus energy storage at the same voltage). In contrast, placing capacitors in series lowers the total capacitance (1/C_total = 1/C1 + 1/C2 + …), even though the voltage rating can rise. Connecting in series with a resistor or in parallel with a diode doesn’t meaningfully increase the capacitance; these components affect charging paths and behavior, not the fundamental capacitance value.

Capacitance adds when capacitors share the same voltage. When you connect capacitors in parallel, each one is across the same voltage, so the charges stored on each add up. The total capacitance becomes the sum of all individual capacitances, C_total = C1 + C2 + …, so adding more capacitors in parallel increases the overall capacitance and thus the energy storage at that voltage.

For a capacitor bank, wiring capacitors in parallel is the way to increase total capacitance (and thus energy storage at the same voltage). In contrast, placing capacitors in series lowers the total capacitance (1/C_total = 1/C1 + 1/C2 + …), even though the voltage rating can rise. Connecting in series with a resistor or in parallel with a diode doesn’t meaningfully increase the capacitance; these components affect charging paths and behavior, not the fundamental capacitance value.