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What is oscillatory discharge?
Alternating current of gradually decreasing amplitude which, under certain conditions, flows through a circuit containing inductance, capacitance, and resistance when a voltage is applied is known as Oscillatory discharge.
What happens to the time constant if you replace the power supply with high voltage?
Nothing. The time constant is a function of resistance and/or capacitance and/or inductance. Voltage does not enter into the equation, except to note that high voltage applied where it was not intended can damage components.Exception: Some capacitors exhibit voltage dependent capacitance, so the time constant in that case would be partially dependent on voltage, but that is a special case.
How sensitive is 22k resistor?
"Sensitivity" is not a word normally applied to resistors. Characteristics of resistors include "resistance", "tolerance", "power rating", and "temperature coefficient". "Inductance" and "capacitance" are also used in describing certain critical performance resistors. A 22 KOhm resistor will require 22 v of voltage to induce a current of 1 ma. This is Ohm's Law: voltage = current times resistance.
What is difference in resistance and reactance?
Resistance is a concept used for DC. the current through a resistance is in phase with the applied voltage Reactance is used for AC the current through a inductive reactance lags the applied voltage by 90 degrees. the current through capacitive reactance leads the applied voltage by 90 degrees. the net reactance is the difference between inductive and capacitive reactance
What is the difference between capacitive reactance and capacitance?
Capacitance is a physical characteristic of a pair of conductors, dependent upon the distance between them, the opposing cross-sectional areas of those conductors, and the nature of the dielectric between them, and is measured in farads.Capacitive reactance is the opposition to the flow of current of a circuit, determined by that circuit's capacitance and the frequency of the a.c. supply applied to that circuit, and is measured in ohms.
What is meant by transistion and space charge capacitance of a diode?
Diffusion capacitance is the capacitance due to transport of charge carriers between two terminals of a device. - Amog This diffusion capacitance is due to depletion capacitance which is a function of forward bias applied to emitter junction of a transistor and due to diffusion capacitance which a function of transconductance of the transistor. Its value is 100 pF. Tirupanyam B.V
1 If the voltage applied across a capacitance is triangular in waveform then the waveform of the current is?
rectangular
What is the capacitance of a capacitor?
Capacitors are built to different specifications depending on application. The higher the capacitance the more charge the capacitor can store.The capacity to store electric charge, when a voltage is applied. Measured in Farad = Coulomb/Volt. In other words, if for every volt applied the capacitor stores 1 coulomb of charge, it would have a capacitance of 1 farad. In practice this is a huge unit, and the capacitance is usually expressed in micro-, nano-, or even pico-Farad.
What happens to the current Amps flowing in a circuit when you raise or lower the frequency Hertz?
This question is not asking about household power circuits which typically have an almost constant frequency of 50 Hz or 60 Hz. If a circuit includes inductance and capacitance then the answer below, marked by *** is incorrect. That answer is correct for purely resistive loads only.An electric motor has inductance as well as resistance. The circuit inside a typical fluorescent light fixture contains a ballast - which has resistance and inductance - and a tube, which has capacitance, inductance and resistance. The currents flowing in the motor and the fluorescent light fixture would vary considerably if the frequency of the applied alternating voltage was allowed to alter.Two other common examples:i) a Hi-Fi or similar audio amplifier, driving a loudspeaker: the speaker has a coil in it which has inductance. The current (and hence the output power) of the speaker varies considerably with the audio frequency, typically between 20 Hz and 20,000 Hz (20 kiloHertz). For that reason different sized speakers - such as tweeters, mid-range, woofers and sub-woofers - each having different sizes of inductance and capacitance, are commonly used to produce the best "total overall sound output" from an amplifier.ii) a tuning circuit for a radio: this must use both an inductance coil and a tuning capacitor. The current flowing in those components varies enormously between "out-of-tune" and "in-tune" settings of the tuning capacitor which makes the circuit tune "in" and "out" of radio frequencies in a specific range which the tuning circuit was designed to handle. Radio frequencies range between 50 kiloHertz and hundreds of GigaHertz or more. Changing the power source from AC to DC may have an effect on the current drawn but is dependent on the nature of the load. Any device is designed for AC or DC operation but rarely both. *** Note: the following answer is incorrect except for purely resistive loads. ***The frequency of an AC voltage line has no effect on the current drawn for any given power. Voltage does have an effect on the current.
Why is capacitace inversely proportional to voltage?
Capacitance is not inversely proportional to voltage, rather capacitance is a measure of how much charge a capacitor can hold for a given voltage. The capacitance value remains constant regardless of the voltage applied across the capacitor. The relationship between capacitance, voltage, and charge is governed by the formula Q = CV, where Q is charge, C is capacitance, and V is voltage.
What is the relationship between capacitance and voltage in an electrical circuit?
The relationship between capacitance and voltage in an electrical circuit is that capacitance is a measure of how much charge a capacitor can store for a given voltage. In simple terms, the higher the capacitance, the more charge a capacitor can hold for a given voltage. Conversely, the higher the voltage applied to a capacitor, the more charge it can store for a given capacitance.
What is the difference between capacitor and capacitance?
A capacitor is a device that stores an electrical charge, or if you prefer- resists any change in voltage applied to it. Capacitance is a measure of the size or ability of a capacitor to do that. This is the Farad
