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DC has no frequency.

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13y ago

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In the simplest of dc circuits where the resistance is zero what kind of circuit is it?

A short circuit.


What is frequency of dc?

You can say DC voltage has a frequency of zero Hz.Because it is unidirectional in nature (may be positive or negative)


When an AC 5A and dc Current of 5A applied simultaneously to the circuit then what it happen?

A DC ammeter will read zero


Will an inductor work on DC?

An inductor cannot work in dc because the frequency is zero there by making the inductive reactance zero as a consequenceAnswerOf course an inductor can work in a d.c. circuit!


What happens if you use an ac circuit breaker instead of dc breaker?

A circuit breaker is easier to design for ac than dc because alternating current (ac) naturally goes to zero 100 or 120 times per second and this helps to extinguish any arc. Therefore an ac circuit breaker would not be suitable for dc assuming the same voltage and current ratings.


How are the capacitors treated in the dc equivalent circuit of an amplifier?

In dc equivalent circuit of an amplifier all capacitors are replaced by open circuit because capacitor block dc. As , Xc=1/2πfC We know that that frequency of dc is zero so Xc will infinite so we replace all capacitors with open circuit.


Why use capacitor in circuit?

To smooth the output of the pulsating DC.


Why do not you use impedance in DC circuit?

Actually, its a matter of terminology... Impedance can be used in a DC circuit. We just call it resistance, however, transient analysis would imply a different notation. To be clear, impedance is normally used in AC circuits, and it is the electrical opposition to AC, taking into account not only voltage, but phase angle. In a DC circuit, impedance and resistance are the same thing, simply with a phase angle of zero.


What is the voltage obtained when a capacitor is placed in a dc circuit?

Eventually, the capacitor will charge to approximately the source voltage level. As this occurs, the current in the circuit will drop to near zero.


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 use of RFC in Hartley oscillator?

it is a radio frequency choke which connects the dc supply to the circuit but isolate the dc supply from the high frequency oscillations generated in the feedback circuit


What is the range of circuit breaker that can be used for a 24V DC equipment?

Use a fuse