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 : In a parallel-resonant circuit, what is the relationship between impedance and current?
Last Answer : Maximum impedance, minimum current.
Description : When you are testing individual components in a circuit, what may cause a defective component to appear good?
Last Answer : A parallel resistor or diode of similar value.
Description : Which of the following statements concerning a simple parallel resistance circuit is correct? A. The voltage drop across each resistor is the same. B. The total current flow equals the reciprocal ... resistances. D. The total voltage equals the sum of the individual voltages across each resistance.
Last Answer : Answer: A
Description : The total voltage of a series circuit is the _____________. A. sum of the individual voltage drops B. total resistance divided by the total current C. sum of the individual currents multiplied by the number of resistors D. total current divided by the total resistance
Description : Which is NOT a characteristic of a series circuit? w) The current is the same throughout. x) The total resistance is the sum of the individual resistance. y) The voltage of the source ... individual voltage drops. z) The total resistance is the sum of the reciprocals of the individual resistances.
Last Answer : ANSWER: Z -- THE TOTAL RESISTANCE IS THE SUM OF THE RECIPROCALS OF THE RECIPROCAL OF THE INDIVIDUAL RESISTANCES.
Description : A series circuit consists of two resistors in series. R1 = 25 ohms and R2 = 30 ohms. The circuit current is 6 amps. What is the (a) source voltage, (b) voltage dropped by each resistor, (c) total power, and (d) power used by each resistor?
Last Answer : (a) 330 volts. (b) E1 = 150 volts. E2 = 180 volts. (c) 1.98 kilowatts. (d) P1 = 900 watts. P2 = 1.08 kilowatts component but in a parallel circuit total current divides among the available paths.
Description : A series circuit consisting of three resistors has a current of 3 amps. If R1 = 20 ohms, R2= 60 ohms, and R 3 = 80 ohms, what is the (a) total resistance and (b) source voltage of the circuit?
Last Answer : (a) 160 ohms. (b) 480 ohms
Description : If one branch of a parallel network is shorted, what portion of circuit current flows through the remaining branches?
Last Answer : None.
Description : Is an ammeter connected in series or in parallel with the circuit under test?
Last Answer : . In series.
Description : What is the difference between calculating impedance in a series ac circuit and in a parallel ac circuit?
Last Answer : In a series circuit impedance is calculated from the values of resistance and reactance. In a parallel circuit, the values of resistive current and reactive current must be used to calculate total impedance.
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 : The total power consumed in a parallel circuit is __________. A. the sum of the powers used in each load (resistor) divided by the number of loads B. always less than the power used in the smallest ... of the powers used in each individual load D. never more than the power used in the largest load
Last Answer : Answer: C
Description : The total resistance of a parallel circuit is always ____________. A. larger than that of the branch with the greatest resistance B. smaller than that of the branch with the lowest resistance C ... resistances D. equal to the sum of the individual branch resistances divided by the number of branches
Last Answer : Answer: B
Description : The total resistance of a parallel circuit is always ____________. A. larger than the greatest branch resistance B. smaller than the lowest branch resistance C. equal to the sum of the individual branch resistances D. one-half the sum of the individual branch resistances
Description : To limit the current flow through a DC voltmeter to as low a value as possible, the moving coil circuit is provided with a/an _____________. A. high series resistance B. high parallel resistance C. series inductor D. external shunt
Description : What is the formula for determining total reactance in a series circuit where the values of XC and XL are known?
Last Answer : X = XL – XC or X = XC - XL
Description : Coast Guard Regulations (46 CFR) require that each alternating current generator arranged for parallel operation shall be provided with _____________. A. more than one means of excitation B. individual circuit fuses C. a high back-pressure trip D. a reverse-power trip
Last Answer : Answer: D
Description : When is line current minimum in a parallel-LC circuit?
Last Answer : At the resonant frequency.
Description : . In an "ideal" resonant circuit, what is the relationship between impedance and current?
Last Answer : Impedance low Current high.
Description : What is the relationship of current to voltage in a circuit?
Last Answer : current increases as voltage increases.
Description : In a three-phase alternator, what is the phase relationship between the individual output voltages?
Last Answer : Each phase is displaced 120º from the other two
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 : Which of the following statements is true concerning simple parallel resistance circuits? A. The total current flow equals the sum of the individual currents. B. The total current flow equals the ... resistance. D. The total voltage equals the sum of the individual voltages across each resistance.
Description : What is the arrangement of both series and shunt components called?
Last Answer : Combination peaking.
Description : What determines whether these components are considered series or shunt?
Last Answer : . The relationship of the components to the output-signal path.
Description : Which of the following statements is correct for the illustrated circuit? EL-0020 A. 'R1', 'R2', and 'R3' are connected in series. B. 'R1', 'R2', and 'R3' are connected in parallel. C. The voltages measured across 'R1', 'R2', and 'R3' are equal. D. The total resistance equals 1/R1 + 1/R2 + 1/R
Description : In an a.c. circuit that contains both an inductor and a capacitor, what term is used for the difference between the individual reactances?
Last Answer : Resultant reactance.
Description : Name the three methods of interconnecting components in multilayer printed circuit boards.
Last Answer : Clearance hole, plated-through hole, and layer build-up
Description : What are the five main components of a circuit breaker?
Last Answer : Frame, operating mechanism, arc extinguishers, terminal connectors, and trip element.
Description : How does the current and potenial difference behave in a series and parallel circuit?
Last Answer : Need answer
Description : Current measuring instruments must always be connected in _____________. A. series with a circuit B. parallel with a circuit C. series-parallel with a circuit D. delta with the shunt
Last Answer : Req= (1/1200 +1/560 + 1/2.1)^-1 = 2.1 ohms RT= 2.1 + 7.8 = 9.9 ohms IT = V/R = 24/9.9 = 2.4 A Veq= R I = 2.1 2 ... 7.8 = 12.096 w = 44.928 w _________________________________________ By: Ellis-Junior Kamatjipose [email protected]
Description : Compare series and parallel circuit in terms of voltage and current.
Last Answer : Series circuits Parallel circuits Only ONE path for current to flow in a closed circuit Number of path for current to flow in a closed circuit Current remains the SAME ... Voltage is DIFFERENT across each component Voltage remains the same across each component of the circuit
Description : In a series parallel circuit, any two resistances in the same current path must be in?
Last Answer : In a series parallel circuit, any two resistances in the same current path must be in series with each other.
Description : A series circuit consists of a two ohm RESISTOR and a one ohm INDUCTOR. The relationship between current and voltage is: w) current will lag by 30 degrees. x) current will lag by 26 degrees. y) current will lead by 26 degrees. z) current will lead by 30 degrees.
Last Answer : ANSWER: X -- CURRENT WILL LAG BY 26 DEGREES.
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 : Can a parallel LC circuit be used as the frequency determining network for an rf amplifier?
Last Answer : Yes.
Description : Serial-to-parallel and parallel-to-serial conversions are accomplished by what type of circuit?
Last Answer : Shift register.
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 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 : What is the power used in a circuit that has 10 amperes of current through a 10-ohm resistor?
Last Answer : 1 kilowatt.
Description : A battery is connected to a circuit containing three resistors in parallel. The values of the three resistors are 2 ohms, 3 ohms, and 6 ohms. What is the voltage of the battery if the total circuit current is 12 amps? A. 2 volts B. 6 volts C. 12 volts D. 24 volt