No Knowledge Points Yet
Knowledge points for this tag are currently being developed.
Browse Problems
15 problems tagged with Capacitor
P0847
Intermediate Electromagnetism › ElectrostaticsSeries Capacitors with Voltage Rating Limit
Two capacitors are rated as $C_1: 200\ \mathrm{pF}, 500\ \mathrm{V}$ and $C_2: 300\ \mathrm{pF}, 900\ \mathrm{V}$.
P0848
Intermediate Electromagnetism › ElectrostaticsPulling Apart Isolated Capacitor Plates
A parallel-plate capacitor has plate area $S$, separation $d$, and carries charge $Q$. The capacitor is isolated (disconnected from any source), and the plate separation is then doubled.
- By how much does the electrostatic energy change?
- How much work do external forces do against the electric force on the plates?
P0849
Intermediate Electromagnetism › ElectrostaticsPulling Apart Capacitor Plates at Constant Voltage
A parallel-plate capacitor with plate area $S$ and separation $d$ is connected to a constant-voltage source of voltage $U$. With the source remaining connected, the plate separation is doubled.
- By how much does the electrostatic energy stored in the capacitor change?
- How much energy is returned to the source during this process?
- How much work do external forces do against the electric force on the plates?
P0859
Intermediate Electromagnetism › ElectrostaticsBuilding Capacitor Banks from Lower-Rated Units
A collection of identical capacitors is available; each has capacitance $2.0\ \mu\mathrm{F}$ and voltage rating $200$ V. They are to be combined to form (a) a capacitor of $C_1 = 0.40\ \mu\mathrm{F}$ rated $1000$ V, and (b) a capacitor of $C_2 = 1.2\ \mu\mathrm{F}$ rated $1000$ V.
- How many capacitors are needed and how should they be connected for $C_1 = 0.40\ \mu\mathrm{F}$, $1000$ V?
- How many capacitors are needed and how should they be connected for $C_2 = 1.2\ \mu\mathrm{F}$, $1000$ V?
P0860
Intermediate Electromagnetism › ElectrostaticsThree-Capacitor Network with Breakdown Scenario
In the circuit in the Figure, $C_1 = 10\ \mu\mathrm{F}$, $C_2 = 5\ \mu\mathrm{F}$, and $C_3 = 5\ \mu\mathrm{F}$. $C_1$ and $C_2$ are connected in parallel between terminal $A$ and a middle node; that parallel combination is in series with $C_3$ from the middle node to terminal $B$.
- Find the equivalent capacitance between terminals $A$ and $B$.
- If a voltage of $100$ V is applied between $A$ and $B$, find the charge and voltage on $C_2$.
- Suppose $C_1$ is suddenly broken down (short-circuited) while the $100$ V is still applied. What are the charge and voltage on $C_3$ after the short occurs?
Practice by Difficulty
Practice all Capacitor problems by difficulty level
Problem Sets
No problem sets available for Capacitor.