answersLogoWhite

0


Best Answer

Any capacitor that is initially uncharged, when presented with a step change in voltage, will have an instantaneous resistance of zero ohms. As a result, the instantaneous current with a circuit involving 4500 ohms and 500 volts will be about 0.111 amperes. It does not matter what the capacitance is.

The stated voltage in the question is unclear, so 500 volts was assumed for the answer.

User Avatar

Wiki User

14y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: A 6.50 mu F capacitor that is initially uncharged is connected in series with a 4500 Omega resistor and a 500 rm V emf source with negligible internal resistance Just after the circuit is completed?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Engineering

Which Capacitor should be connected in one direction?

The electrolytic capacitor should be connected in only one direction.


Describe the response of a capacitor when connected to and then disconnected from a battery?

A capacitor that is suddenly connected to a battery will charge to the battery voltage. The time to do this is dependent on the current capacity of the battery and wiring, and the capacitance of the capacitor. This represents an instantaneous short circuit, which lasts for a (usually) very short time - but damage could be done if there was no resistance. A charged capacitor that is suddenly disconnected from a battery will hold that voltage. The length of time it will hold is dependent on how much leakage current there is.


Why potential difference is same for each capacitive connected in parallel combination?

Because it is simple phenomenon of electricity everything(resistance,capacitor,inductor) connected in parallel holds the same voltage across the each parallel element.


Why does capacitance consume power?

Ideal capacitors and ideal inductors do not dissipate energy, they store energy and release energy like a spring or pendulum. This type of impedance is called reactance as opposed to resistance. Reactance is represented by imaginary numbers, while resistance is represented by real numbers. Real world capacitors have an Effective Series Resistance (ESR) that consumes a small, usually negligible, amount of energy.


What is the effect on the supply current if the capacitor removed?

It depends on how the capacitor is connected and whether the supply voltage is a.c. or d.c. Assuming you are talking about a power-factor improvement capacitor (connected in parallel with an inductive load, supplied with a.c.), then the supply current will reduce.

Related questions

How can an ammeter be connected in a circuit and not effect the flow of current?

The ammeter does affect the flow of current in a circuit, however, the resistance of the ammeter is so small in comparison to the circuit that the effect is negligible. It is connected in series.


What happen when ammeter connected in parallel?

an ideal ammeter has zero or negligible resistance when this is connected in series no effective resistance would be added in the circuit so that the value of curret that we get is exactly of the circuit only. but when the ammeter is connected in parllel as it has zero resistance , the resistor to which it is connected in parllel gets shorted and due to his the effective resistance of the circuit is changed and so the effective current ... due to this the w=value measured by the ammeter would be different (incresed due to dec. in effective resistance)


How capacitor is connected in a table fan?

The Capacitor with running winding is connected in parallel with main winding.


Which Capacitor should be connected in one direction?

The electrolytic capacitor should be connected in only one direction.


Why capacitor is connected to earth in circuit?

when a capacitor is connected to earth the potential of capacitor becomes zero. as a result all the charge residing on the conductors of a capacitor passes away and the final charge on capacitor becomes zero


Describe the response of a capacitor when connected to and then disconnected from a battery?

A capacitor that is suddenly connected to a battery will charge to the battery voltage. The time to do this is dependent on the current capacity of the battery and wiring, and the capacitance of the capacitor. This represents an instantaneous short circuit, which lasts for a (usually) very short time - but damage could be done if there was no resistance. A charged capacitor that is suddenly disconnected from a battery will hold that voltage. The length of time it will hold is dependent on how much leakage current there is.


How is resistivity connected to resistance?

Resistance is connected in parallel with voltmeter or say, voltmeter is connected in parallel with resistance.


What type of electrolytic capacitor will be permanently damaged if connected to the incorrect polarity?

A polarized capacitor will be permanently damaged if connected to the incorrect polarity.


Why potential difference is same for each capacitive connected in parallel combination?

Because it is simple phenomenon of electricity everything(resistance,capacitor,inductor) connected in parallel holds the same voltage across the each parallel element.


What is the output when a fully charged capacitor connected parallel to the inductor?

When an inductor is suddenly connected in parallel with a charged capacitor, the current through the inductor and the voltage between its ends will oscillate at the frequency of F = 1 / 2 pi sqrt(L x C) . With real-world components, having resistance and connected through wire that has resistance, the amplitude of the oscillation will steadily decrease as energy is lost in the circuit, and the oscillation will eventually become too small to measure, and disappear.


How do you wire a capacitor to an amp?

Positive post of capacitor is connected to the heavy amp cable. The ground terminal (or case) of the capacitor is connected to the car's ground or a ground wire that leads to the car's chassis. That's it.


Why does capacitance consume power?

Ideal capacitors and ideal inductors do not dissipate energy, they store energy and release energy like a spring or pendulum. This type of impedance is called reactance as opposed to resistance. Reactance is represented by imaginary numbers, while resistance is represented by real numbers. Real world capacitors have an Effective Series Resistance (ESR) that consumes a small, usually negligible, amount of energy.