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At high frequency, capacitor can be considered as
1. Short Circuit in AC analysis.
2. Open Circuit in DC analysis.
{because Xc= 1/(2*f*pi) where f= supply frequency,pi=3.14}
As at high frequencies, in DC analysis, capacitor will be open circuited & can block the DC signal while AC signal is allowed to pass through.. Hence, this capacitor will act as a blocking capacitor for DC supply.
What else can I help you with?
DC blocking in a transistor is achieved by?
Including a series capacitor in the input and/or output circuit of the transistor. If the capacitor in the output circuit is omitted there will be a dc component in the output.
Purpose of capacitor bank on a sub-station electrical room?
The primary reason for a capacitor bank in an electrical substation is for power factor correction. There may also be some secondary purpose for the capacitor bank but the primary reason is power factor correction.
What is the purpose of a bleed resistor in a start capacitor?
its to count the diatamitaion of blood
What is the purpose of a capacitor on its own set of windings in an ac generator?
it hold energy in it
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.
DC blocking in a transistor is achieved by?
Including a series capacitor in the input and/or output circuit of the transistor. If the capacitor in the output circuit is omitted there will be a dc component in the output.
Purpose of capacitor bank on a sub-station electrical room?
The primary reason for a capacitor bank in an electrical substation is for power factor correction. There may also be some secondary purpose for the capacitor bank but the primary reason is power factor correction.
What is the purpose of a bleed resistor in a start capacitor?
its to count the diatamitaion of blood
Why capacitor is used in circuit board?
use as coupling in some circuts and and as a filter in rectifier circuit. use as DC current blocking.
What is the purpose of connecting capacitor bank in series with 220 kv feeders?
A: Its purpose is to correct the power factor of the line.
Which type of current capacitor can block and which type of current capacitor can store?
In an electronic circuit a capacitor can be used to block direct current. In general a capacitor stores electric charge. The charge in a capacitor is the voltage times the capacitance and that is also equal to the charging current times the time (all quantities in SI units - seconds, volts, amps, coulombs, farads)
What is the purpose of a capacitor in a keyboard?
A capacitor on a keyboard serves to decouple key bounces decouple power supplies block DC and many other functions
What is the purpose of a capacitor on its own set of windings in an ac generator?
it hold energy in it
What is the use of diodes in doubler voltage?
A: The purpose it to block the capacitor from discharging to the source
What is the purpose of a capacitor in a mobile phone?
it allows a mobile phone to store data.
What is the purpose of capacitor in a single phase motor?
the purpose of the capacitor is to create a phase difference between main winding current and axillary winding. this would produce a rotating constant magnetic field which is required to produce the torque.
Why we use blocking and by pass capacitor in CE amplifier?
As the DC component in the signals are not required to be amplified, rather not required at times. Thus a blocking capacitor blocks this DC component from.entering the amplifier. Bypass capacitors are used at the emitter end so that the AC signal reaching the emitter end does not alter the biasing required to maintain the Q-point. All the above happens using the basic characteristic of a capacitor, that it blocks DC and passes AC.
