Mpikirakira ny fandefasana capacitor
Ny famaritana ny famenoana na ny famenoana ny fihodinan'ny RC circuit miaraka amin'ny fotoana tsy miova sy ny angovo.
Manova ny valin'ny fanoratanao.
Momba ity kapila ity
Capacitor charge is the electric charge a capacitor holds in the field between its plates, Q = C × V in coulombs, and the energy stored is E = ½ × C × V² in joules, so doubling the voltage quadruples the stored energy. When you charge a capacitor through a series resistor, the voltage does not jump instantly — it rises along the curve V(t) = V × (1 − e^(−t/τ)); discharging, it falls along V(t) = V × e^(−t/τ). Both are governed by the time constant τ = R × C, the natural timescale of the RC circuit.
After one time constant the capacitor reaches about 63% of the supply voltage when charging (or falls to 37% when discharging); after 5τ it is within 1% of its final value and is treated as fully charged or discharged. For example, a 1,000 µF capacitor charged through a 1 kΩ resistor has τ = 1,000 × 10⁻⁶ × 1,000 = 1 second, so it is 63% charged after 1 s and essentially full after 5 s. At 5 V that same capacitor stores Q = 0.001 × 5 = 0.005 C and E = ½ × 0.001 × 25 = 0.0125 J.
Enter the supply voltage, capacitance and series resistance and the calculator returns the full charge, the stored energy, the time constant, the settling time (5τ), the voltage at a chosen instant, and the whole charge or discharge curve. These numbers are the everyday basis for RC timing circuits, power-supply smoothing, debounce delays, flash-photography energy storage and the turn-on delays in analogue electronics.
Fanontaniana matetika
Inona no atao hoe fotoana tsy miova ao amin'ny circuit RC?
Ny fotoana tsy miova τ = R × C dia ny fotoana mba hamenoana ny manodidina ny 63% ny herinaratra.Aorian'ny 5τ ny capacitor dia heverina ho feno ny entana (> 99%).
Inona no atao hoe angovo azo havaozina?
Energy is E = ½ × C × V². A 1000 µF capacitor at 5 V stores ½ × 0.001 × 25 = 0.0125 joules.
Inona no fahasamihafana eo amin'ny famatsiana sy ny fandefasana?
Charging rises toward the supply as V(1 − e^(−t/τ)); discharging falls from the starting voltage as V·e^(−t/τ). Both reach ~99% of the change after 5 time constants.
Inona no atao hoe andriamby?
The charge is Q = C × V in coulombs. A 1,000 µF capacitor at 5 V holds 0.001 × 5 = 0.005 C. Larger capacitance or higher voltage both store more charge, in direct proportion.
Hatraiza ny fotoana handraisana ny capacitor feno?
Practically, after five time constants (5τ = 5RC) it is within about 1% of the supply and treated as full. With a 1 kΩ resistor and 1,000 µF capacitor τ is 1 s, so it is essentially charged after roughly 5 seconds.
Inona no isan-jato azon'ny isaky ny fotoana tsy miova?
Charging reaches about 63% after 1τ, 86% after 2τ, 95% after 3τ, 98% after 4τ and 99% after 5τ. Discharging follows the mirror image: 37%, 14%, 5%, 2% and 1% remaining at the same points.
Nahoana no tsy maintsy misy ny fifampiraharahana?
Ny resistor no mamaritra ny hafainganan'ny famenoana. Raha tsy misy azy dia ny herinaratra miakatra rehefa alefa no voafetra amin'ny herinaratra mivoaka ary mety ho be; ny resistor no mahatonga ny fotoana ho azo antenaina, izay tena iankinan'ny RC timers, filters ary debounce circuits.
API — mampiasa io milina fanisana io avy amin'ny rindran'asa
Antsoy ho toy ny farany JSON malalaka ity milina fanisana ity - tsy mila famaha. Mandefa ireo sanda eo amin'ny sehatr'asa etsy ambany ho toy ny mpizaratry ny fanontaniana na JSON. Ny zavatra tsy voalaza dia mampiasa ny sanda tsotra efa nameno ity pejy ity; 400 ny sanda tsy fantatra, tsy aotra tsy misy feo. Vakio ny tahirin-kevitra API feno →
Endpoint
GET https://calculator.free/api/v1/capacitor-charge/curl
curl "https://calculator.free/api/v1/capacitor-charge/?mode=charge&voltage=5&capacitance=1000&resistance=1000"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/capacitor-charge/?" + new URLSearchParams({
"mode": "charge",
"voltage": "5",
"capacitance": "1000",
"resistance": "1000"
}));
const data = await r.json();
console.log(data.results);Ny voka-pikarohana dia natao ho an'ny torohevitra ankapobeny ihany, tsy torohevitra ara-bola, ara-pitsaboana na ara-bola.