Description : In a parallel-resonant circuit, what is the relationship between impedance and current?
Last Answer : Maximum impedance, minimum current.
Description : In a series-RLC circuit, what is the condition of the circuit if there is high impedance, low current, and low reactance voltages
Last Answer : Nonresonant (circuit is either above or below resonance)
Description : The combined effect of inductive reactance, capacitive reactance, and resistance in an AC series circuit is known as _____________. A. reactance B. total reactance C. impedance D. resonance
Last Answer : Answer: C
Description : What is the value of Z in a series ac circuit where XL = 6ohms, XC = 3ohms, and R = 4ohms?
Last Answer : X = XL – XC or X = XC - XL
Description : What is the impedance of a crystal at its resonant frequency when it is used in the parallel mode?
Last Answer : Maximum
Description : Is an ammeter connected in series or in parallel with the circuit under test?
Last Answer : . In series.
Description : What is the effect on total resistance and total current in a circuit if a short occurs in (a) a parallel branch, and (b) in a series portion?
Last Answer : (a) Total resistance decreases, total current increases (b) Total resistance decreases, total current increases
Description : What is the effect on total resistance and total current in a circuit if an open occurs in (a) a parallel branch, and (b) in a series portion?
Last Answer : (a) Total resistance increases, total current decreases (b) Total resistance becomes infinite, total current is equal to zero
Description : There is a relationship between total current and current through the individual components in a circuit. What is this relationship in a series circuit and a parallel circuit?
Last Answer : The source voltage would have to be increased to 640 volts
Description : What is the impedance of a crystal at its resonant frequency when it is used in the series mode?
Last Answer : Minimum.
Description : If the output impedance of an amplifier circuit is decreased, what is the effect on the gain?
Last Answer : The gain decreases.
Description : . In an "ideal" resonant circuit, what is the relationship between impedance and current?
Last Answer : Impedance low Current high.
Description : What type of impedance does the tank circuit have above resonance?
Last Answer : Inductive.
Description : The input impedance of your test equipment should exceed the impedance of the circuit under test by what ratio?
Last Answer : 10 to 1
Description : What impedance relationship between the output of one circuit and the input of another circuit will provide the maximum power transfer?
Last Answer : Equal impedance.
Description : When troubleshooting electronic equipment, you should use a high impedance multimeter ________________. A. to prevent excess current flow through the meter that would damage it B. for AC measurements only ... being tested D. so as not to load down the circuit and obtain erroneous voltage readings
Last Answer : Answer: D
Description : In AC Circuit Theory, the term that replaces the resistance is: w) inductance x) capacitance y) impedance z) reactance
Last Answer : ANSWER: Y -- IMPEDANCE
Description : Compare series and parallel resonance on the basis of (i) Resonating frequency (ii) Impedance (iii) Current (iv) Magnification
Last Answer : S. No . Parameter Series Circuit Parallel Circuit 1 Resonating frequency 2 Impedance Minimum, Z = R Maximum, Z = L/CR 3 Current Maximum, I ... , I = V/(L/CR) 4 Magnification Voltage magnification takes place Current magnification takes place
Description : Which of the electrical properties listed will always be the same for each component in a parallel circuit? A. Impedance B. Current C. Resistance D. Voltage
Last Answer : In an RLC parallel circuit, the impedance at resonance is Maximum.
Description : The formula for computing impedance in a series circuit containing resistance, capacitance, and inductance is _____________. [ NOTE: the symbol * stands for 'multiplied by' ] A. Z = RT + XL + XC B. Z = R + XL - XC C. Z * Z = R * R + (XL - XC) * (XL - XC) D. Z = R * R + (XL * XC) - (XL * XC)
Description : Draw a circuit diagram of R.C. series circuit. Draw impedance triangle and power triangle for same circuit.
Last Answer : Draw a circuit diagram of R.C. series circuit. Draw impedance triangle and power triangle for same circuit.
Description : Draw impedance triangle and voltage triangle for RL series circuit
Last Answer : impedance triangle and voltage triangle for RL series circuit
Last Answer : In an R-C-L series circuit, during resonance, the impedance will be minimum.
Description : In a series resonant circuit, the impedance of the circuit is?
Last Answer : In a series resonant circuit, the impedance of the circuit is minimum.
Description : What is the formula for calculating reactive power?
Last Answer : Reactive Power = (IX)2X
Description : What is the formula for calculating true power?
Last Answer : True Power = (IR)2R
Description : What determines the range of wavelengths over which meaningful data is obtained for calculating the chromatic dispersion?
Last Answer : The wavelength range of the optical source(s) used.
Description : Which computer has the faster calculating speeds, the variable-word-length or the fixed-word-length?
Last Answer : Fixed-word-length.
Description : What is the reactive power in an ac circuit?
Last Answer : Reactive power is the power returned to the source by the reactive components of the circuit.
Description : What is the true power in an ac circuit?
Last Answer : True power is the power dissipated in the resistance of the circuit or the power actually used in the circuit.
Description : What term is given to total opposition to ac in a circuit?
Last Answer : Impedance
Description : What is the condition of the diode in a series limiter when an output is developed? In a parallel limiter?
Last Answer : Conducting, cutoff.
Description : In a full-wave voltage doubler, are the capacitors connected in series or in parallel with the output load?
Last Answer : In parallel.
Description : In a capacitor filter, is the capacitor in series or in parallel with the load?
Last Answer : Parallel.
Description : A shunt type voltage regulator is connected in series/parallel with the load resistance.
Last Answer : Parallel
Description : In a capacitor filter, is the capacitor in series or parallel with the load?
Description : For a diode to act as a rectifier, should it be connected in series or parallel with the load?
Last Answer : Series.
Description : what is the purpose of the series-parallel network R 3, R 4, and R5?
Last Answer : The series-parallel network drops the remaining source voltage and is used to take the place of a single resistor (75 ohms) when the required ohmic value is not available in a single resistor.
Description : The total power in both series and parallel circuits is computed with the formula: PT = P1 + P2 + P3 +...Pn. Why can this formula be used for both series and parallel circuits?
Last Answer : In both cases all the power used in the circuit must come from the source.
Description : When measuring AC current flow, you must always connect the meter _____________. A. in series with the power source and load B. in parallel with the power source and load C. insuring correct polarity D. using the lowest range possible to prevent instrument damage
Last Answer : Answer: A
Description : How to find the potential difference across a battery in a series parallel circuit with resistors that have no value given?
Last Answer : The potential difference is obtthe difference of all voltage across a terminal. From the circuit above I think the resistors are in series and parallel to each other. The two resistors in line CB are ... place the multimeter in series with the circuit and you will get the resistance. But ise you
Description : How does the current and potenial difference behave in a series and parallel circuit?
Last Answer : Need answer
Description : Can a parallel LC circuit be used as the frequency determining network for an rf amplifier?
Last Answer : Yes.
Description : When is line current minimum in a parallel-LC circuit?
Last Answer : At the resonant frequency.
Description : Serial-to-parallel and parallel-to-serial conversions are accomplished by what type of circuit?
Last Answer : Shift register.
Description : If one branch of a parallel network is shorted, what portion of circuit current flows through the remaining branches?
Last Answer : None.
Description : Why will an ammeter be damaged if connected in parallel with the circuit to be measured?
Last Answer : Since the ammeter has a small resistance compared to the load, it will have very high current if it is connected in parallel. This high current will damage the meter.
Description : What device is used to produce a gradual change in impedance at the end of a waveguide?
Last Answer : Horn.
Description : What is the result of an impedance mismatch in a waveguide?
Last Answer : Standing waves that cause power losses, a reduction in power handling capability, and an increase in frequency and sensitivity.