answersLogoWhite

0

It might mean that the voltage across a capacitor cannot change instantanteously because that would demand an infinite current.

The current in a capacitor is C.dV/dt so with a finite current dV/dt must be finite and therefore the voltage cannot have a discontinuity.

User Avatar

Wiki User

11y ago

What else can I help you with?

Continue Learning about Movies & Television

Can capacitor increase low voltage to high voltage?

yes a capacitor can improve voltage by improving power factor


What happens to the current in a circuit as a capacitor charges?

What happens to the current in a circuit as a capacitor charges depends on the circuit. As a capacitor charges, the voltage drop across it increases. In a typical circuit with a constant voltage source and a resistor charging the capacitor, then the current in the circuit will decrease logarithmically over time as the capacitor charges, with the end result that the current is zero, and the voltage across the capacitor is the same as the voltage source.


What effect does the series resistance of a capacitor used in a capacitor filter have on diode current and ripple voltage compared with an ideal capacitor of no resistance?

The effective resistance of the capacitor reduces the ripple current through the capacitor making it less effective in its function of smoothing the voltage. But if the capacitor filter is fed by a transformer and diodes, the resistance of the transformer exceeds that of the capacitor.


How charging and discharging of capacitors happened?

in the capacitor they have constant voltage wen supply is given the capacitor get charged(high voltage)and discharge energy wen the voltage is low below the applied voltag.


Why capacitor in transistor amplifier circuit at input?

Because capacitor not allow to pass dc voltage,but capacitor allow ac voltage and signal.Purpose is to block dc voltage.That is coupling condenser.

Related Questions

What does the volt on a capacitor mean?

the voltage number on the capacitor indicates that the capacitor can with stand to that particular voltage across it.generally during design, the value of capacitor will be selected in such a way that this voltage rating should be double than what really we get in the circuit


Should your capacitor have continuity?

no


Will a capacitor lower voltage?

A: As soon as a DC voltage is applied the capacitor is a short or no voltage


Why is voltage rating of a capacitor important to the user?

The voltage rating of a capacitor tells the user how much voltage the capacitor can withstand. If a user exceeds this voltage, the capacitor's dielectric may be damaged and destroyed.


What do the letters and symbols after the voltage on my TV capacitor mean?

Please give examples.


Can capacitor increase low voltage to high voltage?

yes a capacitor can improve voltage by improving power factor


Can the voltage across a capacitor change instantaneously?

No, the voltage across a capacitor cannot change instantaneously. It takes time for the voltage across a capacitor to change due to the storage and release of electrical energy in the capacitor.


How does capacitor discharge while ac supply is on?

For part of the AC voltage wave, the capacitor will be above the source voltage, and will discharge until the AC voltage wave increases above the capacitor's stored voltage.


Whats the highest voltage increase i can make when replacing a Capacitor?

you cannot increase the voltage by replacing a capacitor. A capacitor is a passive components it has no gain.


What is the purpose of capacitor in power supply higher than rated voltage?

The voltage marked on a capacitor is its MAXIMUM SAFE WORKING VOLTAGE. The capacitor will work in a circuit at any voltage lower than that, but it may fail at any higher voltage.


Can you use a high voltage capacitor on a low voltage battery?

Yes. You just don't want to exceed the voltage rating of the capacitor.


What is a capacitor analyzer designed to read?

Capacitor voltage