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It passes AC through it and blocks DC

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14y ago

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Can alternative current be turned into direct current?

By "alternative" I presume you mean "alternating". Yes it can by using a device called a rectifier then some sort of bypass circuit to conduct the alternating current to ground, usually just a capacitor.


What is the use of capacitor in circuit?

to bypass current and charge and discharge current


What is use of capacitor?

It blocks direct electrical current allowing alternating current to pass


Is it true the alternating current can pass through a capacitor while the direct current cannot pass through?

Yes.


Capacitor from emitter to ground in common emitter circuit is called?

The capacitor is called a bypass capacitor , it provides a low impedence path for AC emitter current to groun.


Is it true that an alternating current passing through a capacitor While a direct current can not Explain?

Then I'll try this. Just as V=IR is the fundamental equation relating voltage, current and resistance for a resistor circuit, the following equation relates voltace, current and capacitance for a capacitor: Or, if you are not familiar with that calculus term with the derivative, you can think of it as: I(t) = C * (change of voltage per time) So when you have DC, there is no change of voltage with respect to time, so there is zero current. When you have an AC voltage signal that varies across the capacitor with time, that equation lets you calculate the current that results through the capacitor. A capacitor is two surfaces near each other, but not touching. A direct current "sees" a capacitor as an open switch. It cannot pass through. An alternating current "induces" a charge in a capacitor and can pass through.


What current does a capacitor pass?

ac power (alternating current) it blocks dc power Many people will say a capacitor can't pass current because they consider Electric current to be the flow of electrons but that's not necessarily the case. In a capacitor current is passed by the building up and dropping of an electric field. DC does not flow for long of course.


What is the function of a bypass capacitor in an amplifier?

Bypass capacitors are used to bypass (shunt) unwanted signals to the ground. A common use is in power supplies where a bypass capacitor is connected in parallel with the main filter capacitor to shunt noise and other high frequency interference to ground which the main capacitor may not be able to do.


What converts an alternating current to diredt current?

Alternating Current can be converted to Direct Current by using a DC Converter which contain a Bridge Circuit , a Capacitor and if needed a Transformer.CommentA 'DC converter' is normally called a rectifier.


What is the difference between voltage gain obtained with bypass capacitor and without the bypass capacitor?

A: A TRANSISTOR gain is determined by current flow on the collector by adding a resistor to the emitter this current flow is reduced by adding or bypassing this resistor with a capacitor the net effect is that this emitter resistor will be reduced in value as frequency increases therefore change gain as a function of frequency input


A lamp is connected to a battery if a capacitor is inserted in the positive wire between the battery and the lamp what will happen?

large capacitors will become charged in a fraction of a second if a DC voltage is applied to its terminalsonce a capacitor becomes fully charge it acts as an open circuit to direct current in other words, once the capacitor charged by a DC voltage, the current will cease to flow in the branch of the circuit which contains the capacitor.a capacitor also offers opposition known as (capacitive reactance) to alternating current. it does not , however ,act as an open circuit to when an a-c alternating current voltage is applied.


What happens when a bypass capacitor is shorted?

The circuit becomes a pure resistance circuit where current and voltage are in phase with each others.