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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
What else can I help you with?
Why voltage across capacitor goes to zero when wires connected to each terminal of charged capacitor are brought into contact?
The voltage goes to zero because a current path has been created between the positive and negative elements of the capacitor, discharging the stored charge and putting both the anode and cathode of the capactor at the same electrical potential. Thus, no voltage difference between them, which is why the voltmeter reads zero.
When excessive voltage is applied to a capacitor it will break down What factor of the capacitor has the greatest effect on breakdown voltage?
The dielectric material between the plates.
What is the ratio between the charge on either plates of capacitor and the potential difference between the plate?
The ratio between the charge on either plate of a capacitor (Q) and the potential difference (V) across the plates is given by the capacitance (C) of the capacitor, expressed as ( C = \frac{Q}{V} ). This means that the capacitance is a measure of how much charge a capacitor can store per unit of voltage applied. Therefore, the ratio ( \frac{Q}{V} ) is constant for a given capacitor and is equal to its capacitance.
Why a capacitor is placed in a circuit V equals Xc?
In a circuit, a capacitor is placed to store and release electrical energy, which helps in regulating voltage and current. The relationship ( V = X_c ) indicates that the voltage across the capacitor (V) is related to its capacitive reactance (( X_c )), which is determined by the frequency of the AC signal and the capacitance value. This reactance causes a phase difference between current and voltage, enabling the capacitor to filter signals, smooth out voltage fluctuations, and provide reactive power in AC circuits.
Why is voltage rating of a capacitor important to the user?
The voltage rating of a capacitor tells the user how much voltage the capacitor can withstand. If a user exceeds this voltage, the capacitor's dielectric may be damaged and destroyed.
What is the potential difference between two plates of a capacitor and how does it affect the overall behavior of the capacitor?
The potential difference between two plates of a capacitor is the voltage across the capacitor. This voltage affects the amount of electric charge stored in the capacitor and determines the energy stored in the capacitor. A higher potential difference results in a greater charge and energy stored in the capacitor. This affects the overall behavior of the capacitor by influencing its capacitance, charging and discharging rates, and the amount of energy it can store and release.
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.
What is the potential difference formula for a capacitor?
The potential difference formula for a capacitor is V Q/C, where V is the potential difference (voltage), Q is the charge stored on the capacitor, and C is the capacitance of the capacitor.
Why does the voltage reading drop in measuring the potential difference across the capacitors?
Because the capacitor discharges. so voltage across the capacitor decreases.
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
Relation between voltage and current if you consider capacitor ckt?
In a capacitor ckt, current will be lead ahead from voltage by an angle 90 degree. Because for a capacitor the relationship between voltage and current is given as v=(jx)i , where v= voltage i= current jx=capacitive reactance
What is the relationship between capacitor current and voltage in an electrical circuit?
The relationship between capacitor current and voltage in an electrical circuit is that the current through a capacitor is directly proportional to the rate of change of voltage across it. This means that when the voltage across a capacitor changes, a current flows to either charge or discharge the capacitor. The relationship is described by the equation I C dV/dt, where I is the current, C is the capacitance of the capacitor, and dV/dt is the rate of change of voltage with respect to time.
Why voltage across capacitor goes to zero when wires connected to each terminal of charged capacitor are brought into contact?
The voltage goes to zero because a current path has been created between the positive and negative elements of the capacitor, discharging the stored charge and putting both the anode and cathode of the capactor at the same electrical potential. Thus, no voltage difference between them, which is why the voltmeter reads zero.
How does the voltage across a parallel plate capacitor change when connected to a battery?
When a parallel plate capacitor is connected to a battery, the voltage across the capacitor increases as it charges. The battery provides a potential difference that causes charges to accumulate on the plates, leading to an increase in voltage until the capacitor is fully charged.
When excessive voltage is applied to a capacitor it will break down What factor of the capacitor has the greatest effect on breakdown voltage?
The dielectric material between the plates.
What is the ratio between the charge on either plates of capacitor and the potential difference between the plate?
The ratio between the charge on either plate of a capacitor (Q) and the potential difference (V) across the plates is given by the capacitance (C) of the capacitor, expressed as ( C = \frac{Q}{V} ). This means that the capacitance is a measure of how much charge a capacitor can store per unit of voltage applied. Therefore, the ratio ( \frac{Q}{V} ) is constant for a given capacitor and is equal to its capacitance.
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.
