0
What else can I help you with?
What conditions could the total impedance of two impedances in series be less than that of either one by itself?
A:resonant
What is input impedance of a circuit?
Impedance is the total opposition to current flow. It includes both resistance AND reactance (capacitive and inductive). Impedance varies with frequency, while plain resistance does not. Scroll down to related links and look at: "Different names for the two impedances Z1 and Z2" "Calculation the damping of impedance bridging or power matching an interface connecting Zout and Zin" "Impedance bridging or voltage bridging of two audio units".
Why the current increases upto resenance frequency and decreases there after in a series LCR circuit?
At resonance, the L and C impedance cancels out, so the current can be calculated based on the resistance and applied voltage. Imagine increasing frequency of the supply from 0 Hz to very high. At low frequency, the impedance of the inductor is ~0 (defined as Zl = w*L*j), and the impedance of the capacitor is very large (defined as Zc = 1 / (w*C*j)). As you increase the frequency, the impedance of the capacitor will decrease, as the impedance of the inductor increases. At some point (the resonant frequency), these two will be equal, with opposite signs. After crossing the resonant frequency, the inductor impedance will continue growing larger than the capacitor impedance until the total impedance approaches infinite.
What is the resistance of four 8 ohm speakers wired in a series?
Two 8 ohm speakers in parallel is 4 ohms, and the power will be split between them. However, unless the amplifier is rated for 4 ohm operation, you will not get the same total power out of the amplifer as you would with an 8 ohm load.
What are the importance of impedance matching in amplifiers?
Two reasons. 1...When impedance of source and destination match, power transfer is maximum. 2...If a long transmission line is involved, the characteristic impedance of the line must match the destination impedance, or reflections will occur on the line.
What conditions could the total impedance of two impedances in series be less than that of either one by itself?
A:resonant
Under what conditions could the total impedance of two impedances in series be less than that of either one by itself?
If both were reactances instead of resistances.AnswerIf one impedance was resistive-inductive (R-L) and the other impedance was resistive-capacitive (R-C), then the effective impedance could be less than either. For example, towards or at resonance, the inductive reactance will negate the capacitive reactance, leaving resistance as the main (or only) opposition to current flow. At resonance, the impedance of a circuit is simply its resistance.
Will two 4ohm subs running series and one 8ohm sub running parallel work together maintain a 4 6 or 8 ohm load if not how will the subs work together with a single monoblock amp?
4 Ohm subs wired in series gives an impedance of 8 Ohms. 2 4 Ohm subs wired in series, wired with an 8 Ohm sub in parallel gives you a final impedance of 4 Ohms. Speakers wired in series raise impedance, speakers wired in parallel lower impedance.
What is the total impedance of a circuit when the resistance is 15K Ω and the capacitive reactance is 10K Ω?
I have to assume that those two components are in series, and that there areno other components in the circuit, because it's easier that way and I'm uppast my bedtime.The total impedance is (15K) - j(10K) = sqrt [ (15K)2 + (10K)2 ] =18,028Ω at an angle of -33.7°.
What is input impedance of a circuit?
Impedance is the total opposition to current flow. It includes both resistance AND reactance (capacitive and inductive). Impedance varies with frequency, while plain resistance does not. Scroll down to related links and look at: "Different names for the two impedances Z1 and Z2" "Calculation the damping of impedance bridging or power matching an interface connecting Zout and Zin" "Impedance bridging or voltage bridging of two audio units".
Why the current increases upto resenance frequency and decreases there after in a series LCR circuit?
At resonance, the L and C impedance cancels out, so the current can be calculated based on the resistance and applied voltage. Imagine increasing frequency of the supply from 0 Hz to very high. At low frequency, the impedance of the inductor is ~0 (defined as Zl = w*L*j), and the impedance of the capacitor is very large (defined as Zc = 1 / (w*C*j)). As you increase the frequency, the impedance of the capacitor will decrease, as the impedance of the inductor increases. At some point (the resonant frequency), these two will be equal, with opposite signs. After crossing the resonant frequency, the inductor impedance will continue growing larger than the capacitor impedance until the total impedance approaches infinite.
What is the Difference between image impedance and iterative impedance?
iterative impedance is a particular value of the load impedance that can be found which will produce an input impedance having the same value as the load impedance.When connected at one end of the port produces an equal impedance when looking at the other. Image impedance-Two impedance's of two port network,which will terminate the port simultaneously in a way that, at each port the impedance seen in both directions are equal.
What do Two circuits that are equivalent have the same of?
If the two circuits have the same input impedance they are equivalent in respect of the input impedance.
What is the resistance of four 8 ohm speakers wired in a series?
Two 8 ohm speakers in parallel is 4 ohms, and the power will be split between them. However, unless the amplifier is rated for 4 ohm operation, you will not get the same total power out of the amplifer as you would with an 8 ohm load.
How yo calculate angle of lag in a inductive coil circuit?
There are several ways of doing this, but it depends on what information you have to start with. One way is to find the impedance, using a voltmeter and an ammeter (impedance will be the product of the two readings), and the resistance using an ohmmeter (or, better still, a Wheatstone Bridge) and, then, use the equation:cos (phase angle) = resistance / impedance
What two values you have to calculate speed?
Total distance and total time.
Why is the current different when 2 light bulbs are arranged in a parallel circuit or series circuit?
Two equal impedance loads in parallel will consume a certain amount of power, depending on the input voltage. Place those two loads in series, and you double the impedance, which halves the current, which quarters the power in each load. Additionally, make those loads light bulbs, and the negative temperature coefficient of the bulbs would make them draw slightly more than just one quarter the power, because they are now running cooler and have slightly lower impedance..
