Parallel combination

Definition

A parallel combination of capacitors involves connecting multiple capacitors in such a way that each capacitor's terminals are connected to the same pair of nodes. The total capacitance in a parallel combination is the sum of the individual capacitances.

5 Must Know Facts For Your Next Test

1. The equivalent capacitance in a parallel combination is given by $C_{eq} = C_1 + C_2 + ... + C_n$.
2. In a parallel combination, the voltage across each capacitor is the same.
3. The total charge stored in a parallel combination is the sum of charges on each capacitor: $Q_{total} = Q_1 + Q_2 + ... + Q_n$.
4. Parallel combinations can be used to increase the overall capacitance without increasing the voltage rating.
5. Energy stored in a parallel combination of capacitors can be calculated using $U = \frac{1}{2}C_{eq}V^2$.

Review Questions

• What is the formula to calculate equivalent capacitance in a parallel combination?
• How does the voltage across each capacitor compare in a parallel arrangement?
• If three capacitors with values of $2 \mu F$, $3 \mu F$, and $5 \mu F$ are connected in parallel, what is their total capacitance?

Related terms

Capacitance: The ability of a system to store an electric charge, measured in farads (F).

Series Combination: A configuration where capacitors are connected end-to-end, and the reciprocal of the total capacitance is equal to the sum of reciprocals of individual capacitances.

Electric Potential: The amount of work needed to move a unit positive charge from infinity to a point within an electric field, measured in volts (V).