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What electrical quantity consists of both resistance and reactance?
Wiki User
∙ 9y ago
Impedance.
Wiki User
∙ 9y ago
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What happens if capacitance of circuit is more than resistance?
Resistance is a completely different quantity to capacitance, resistance being measured in ohms and capacitance in farads. So they are 'apples and oranges'. You should be asking, 'What happens if capacitive reactance (in ohms) is larger than resistance?'. And one answer would be that the phase angle will be greater than 45 degrees. There are other answers, too, but it depends what you want to know,
What is omega mean in electrical engineering?
in physics it meant Resistance..AnswerThe Greek letter, omega, is used in SI to represent the ohm. The symbol for the quantity, resistance, is a italicised, upper-case, R.
Why does an inductor block AC but allow DC?
While it is true that an inductor opposes the flow of an alternating current, it does not necessarily 'block it'. The quantity that opposes the flow of an AC current is the inductor's inductive reactance, expressed in ohms. Inductive reactance is proportional to the frequency of the supply voltage and, at 50 or 60 Hz, the reactance of a transformer's winding is relatively low (although very much higher than its resistance) and, while this acts to limit the amount of current flow, it certainly doesn't act to block that flow.
What is prncipal of transducer?
The basic principle of a transducer: A transducer which converts a physical quantity to the electrical quantity.
What happens in a current when the resistance goes up?
It causes the electricity flow faster,which in term increases the electrical flow.CommentChanging a circuit's resistance doesn't cause 'electricity' to flow faster -or slower, come to that! First of all, 'electricity' isn't a quantity, so it cannot be measured, and it doesn't flow! If, by 'electricity', you mean 'current', well that isn't made to 'flow faster' either.If the supply voltage is constant, then increasing a circuit's resistance causes the magnitude of current to fall. This has nothing to do with its 'speed'!
What is induction and inductive reactance?
resistance is real, the other purely imaginary.AnswerResistance is the opposition to the flow of current (AC or DC) which is proportional to a conductor's cross-sectional area and resistivity, and inversely proportional to its length. Reactance is the opposition to AC current due to either the circuit's inductance or its capacitance, and are termed inductive reactance and capacitive reactance. Resistance and reactance are both measured in ohms.Inductive reactance is proportional to the circuit's inductance and the frequency of the supply; capacitive reactance is inversely proportional to the circuit's capacitance and the frequency of its supply. In other words, inductive reactance increases with frequency, whereas capacitive reactance decreases with frequency.All AC circuits contain resistance, and most contain some degree of inductance and/or capacitance. So the opposition offered by a circuit to AC current includes resistance together with some combination of inductive and/or capacitive reactance.It's incorrect to suggest that reactance is 'imaginary'in the every day sense of the word -it exists, so it must be 'real'. In this context, 'imaginary' is a mathematical term that indicates that if resistance and reactance were represented in a vector diagram (called an 'impedence diagram'), then reactance quantity would lie at right-angles to the resistance quantity. For this reason, the overall opposition to current flow, which is called impedance, is not the algebraic sum of resistance and reactance, but the vector sum of the two. So, for example, if a circuit had a resistance of, say, 4 ohms, and its inductive reactance was 3 ohms, then its impedance would be 5 ohms -not 7 ohms.Although we can represent resistance and reactance using a vector diagram (impedance diagram), strictly-speaking the quantities themselves are not vector quantities. The impedance diagram is created as a result of a phasor (vector) diagram representing the current and voltage relationships in the AC circuit.
What is temperature coefficient for insulator?
"Temperature coefficient" means, how does a certain physical quantity vary, depending on the temperature. In this case, the physical quantity in question is probably the electrical resistance, or the electrical resistivity.
What is temperature co-efficiant?
It means how much some quantity (for example, electrical resistance) changes as a function of temperature.
What is temperature co-efficient?
It means how much some quantity (for example, electrical resistance) changes as a function of temperature.
The ohm is the unit of measurement of quantity of positive electrical charges?
Ohm is a unit of measurement for resistance. The term ohm was named after a German physicist named Georg Simon Ohm.
What do you understand by term resistance?
The electrical resistance of an object is a measure of its opposition to the passage of a steady electric current. An object of uniform cross section will have a resistance proportional to its length and inversely proportional to its cross-sectional area, and proportional to the resistivity of the material.Discovered by Georg Ohm in the late 1820s,[1] electrical resistance shares some conceptual parallels with the mechanical notion of friction. The SI unit of electrical resistance is the ohm, symbol Ω. Resistance's reciprocal quantity is electrical conductance measured in siemens, symbol S.
What happens if capacitance of circuit is more than resistance?
Resistance is a completely different quantity to capacitance, resistance being measured in ohms and capacitance in farads. So they are 'apples and oranges'. You should be asking, 'What happens if capacitive reactance (in ohms) is larger than resistance?'. And one answer would be that the phase angle will be greater than 45 degrees. There are other answers, too, but it depends what you want to know,
What is omega mean in electrical engineering?
in physics it meant Resistance..AnswerThe Greek letter, omega, is used in SI to represent the ohm. The symbol for the quantity, resistance, is a italicised, upper-case, R.
Is resistance a vector?
A vector quantity is one that has a magnitude (a number), and a direction. No, resistance is not a vector quantity; it is a scalar quantity (only magnitude).
What is the constant electrical quantity in a series connection and a series-parallel connection?
constant electrical quantity-series connection -current constant electrical quantity-parallel connection - voltage
What is the similarities between vector and phasor?
"Vector" is a description of magnitude and direction, and can apply to any quantity that has magnitude and direction, such as an aircraft's flight path. "Phasor" is a vector as used in alternating current electrical/electronic circuits. Calculations are the same as for general-purpose vector math, but the quantities are typically phase angle, voltage, voltage, current, resistance, reactance and impedance. Some calculations will use conductance, admittance and susceptance.
What is the quantity of voltmeter?
Electrical pressure
