Electronics Fundamentals: Circuits, Devices & Applications
8th Edition
ISBN: 9780135072950
Author: Thomas L. Floyd, David Buchla
Publisher: Prentice Hall
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Chapter 12, Problem 13ST
If a load is purely inductive and the reactive powerr is 10 VAR, the apparent power is
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a capacitor and a resistor are connected in parellel to a 120 v 60 hz line the resistor has a resistance of 40 ohms and the capacitor has a capacitance of 132.6 uf what is the total current flow through the circuit. what is the impedence and the power factor and how many degrees out of phase are the current and voltage out phase with eachother.
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Chapter 12 Solutions
Electronics Fundamentals: Circuits, Devices & Applications
Ch. 12 - In an ac circuit where R=XL, the phase angle is...Ch. 12 - Prob. 2TFQCh. 12 - In an ac series RL circuit, the current and...Ch. 12 - In an ac parallel RL circuit, the inductive...Ch. 12 - In an ac parallel RL circuit, the voltage across...Ch. 12 - The unit siemens is used to measure both...Ch. 12 - Prob. 7TFQCh. 12 - If the power factor of a circuit is 0.5, the...Ch. 12 - Prob. 9TFQCh. 12 - Prob. 10TFQ
Ch. 12 - In a series RL circuit, the resistor voltage Leads...Ch. 12 - Prob. 2STCh. 12 - Prob. 3STCh. 12 - If the frequency is doubled and the resistance is...Ch. 12 - Prob. 5STCh. 12 - Prob. 6STCh. 12 - Prob. 7STCh. 12 - Prob. 8STCh. 12 - Prob. 9STCh. 12 - Prob. 10STCh. 12 - Prob. 11STCh. 12 - Prob. 12STCh. 12 - If a load is purely inductive and the reactive...Ch. 12 - Prob. 14STCh. 12 - Prob. 15STCh. 12 - Determine the cause for each set of symptoms....Ch. 12 - Determine the cause for each set of symptoms....Ch. 12 - Prob. 3TSCCh. 12 - Prob. 4TSCCh. 12 - Prob. 5TSCCh. 12 - Prob. 1PCh. 12 - Prob. 2PCh. 12 - Find the impedance of each circuit in Figure...Ch. 12 - Determine the impedance and phase angle in each...Ch. 12 - In Figure 12-52, determine the impedance at each...Ch. 12 - Determine the values of R and XL in a series RL...Ch. 12 - If the frequency of the source is increased to 1...Ch. 12 - Determine the voltage across the total resistance...Ch. 12 - Find the current for each circuit of Figure 12-50.Ch. 12 - Calculate the total current in each circuit of...Ch. 12 - Determine for the cicutit in Figure 12-53.Ch. 12 - If the inductance in Figure 12-53 is doubled, does...Ch. 12 - Draw the waveforms for Vs,VRandVL in Figure 12-53....Ch. 12 - For the circuit in Figure 12-54, find VRandVL for...Ch. 12 - For the lag circuit in Figure 12-55, determine the...Ch. 12 - Repeat Problem 15 for the lead circuit in Figure...Ch. 12 - What is the impedance for the circuit in Figure...Ch. 12 - Repeat Problem 17 for the following frequencies:...Ch. 12 - At what frequecy does XL equal R in Figure 12-57?Ch. 12 - Find the total current and each branch current in...Ch. 12 - Determine the following quantities in Figure...Ch. 12 - Convert the circuit in Figure 12-60 to an...Ch. 12 - Determine the voltage across each element in...Ch. 12 - Is the circuit in Figure 12-61 predominantly...Ch. 12 - Find the current in each branch and the total...Ch. 12 - In a certain RL circuit, the true power is 100 mW,...Ch. 12 - Determine the true power and the reactive power in...Ch. 12 - What is the power factor in Figure 12-58?Ch. 12 - Determine Ptrue,Pr,Pa, and PF for the circuit in...Ch. 12 - Plot the response curve for the circuit in Figure...Ch. 12 - Using the same procedure as in Problem 30, plot...Ch. 12 - Draw the voltage phasor diagram for each circuit...Ch. 12 - Prob. 33PCh. 12 - Prob. 34PCh. 12 - Determine the voltage across the inductors in...Ch. 12 - Is the circuit in Figure 12-64 predominantly...Ch. 12 - Find the total current in Figure 12-64.Ch. 12 - Determine the phase shift and attenuation...Ch. 12 - Design an ideal inductive switching circuit that...Ch. 12 - Prob. 44PCh. 12 - Prob. 45PCh. 12 - Prob. 46PCh. 12 - Prob. 47PCh. 12 - Open file P12-48. Determine if there is a fault...Ch. 12 - Prob. 49P
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- An R-L series circuit contains two resistors and two inductors. The resistors dissipate powers of 96 watts and 125 watts. The inductors have reactive powers of 100 VARs and 78 VARs. What is the power factor?arrow_forwardProblem: 25 mH m Find Leq In below figure. 10 mH m 60 mH m 20 mH m 30 mH m -o b L 0000arrow_forwardQUESTION 9 E-06, PC-02. Three inductors 5 mH, 15 mH and 25 mH are connected in series. What is the total inductance? 5 mH. 45mH. Without knowing the coupling factor the total inductance cannot be found. QUESTION 10 E-06, PC-05. An inductor is said to be saturated when? The current through it is zero. The current is at a maximum. It will no longer accept lines of flux.arrow_forward
- By convention, the sign of reactive power to an inductance is and the sign of reactive power to a capacitance isarrow_forward2. The total inductance for this circuit is mh. 5h L₂ 10 h 10 harrow_forwardThis waveform, is the current in Half- .bridge With Purely capacitor Load circuit i Io T/2 T - Io True O False Oarrow_forward
- in a series Ri. circuit voltage across the resistor is 100 V and the voltage across inductor is 50 V. The power factor of the circuit is O a LII Ob 128 D Oc 0.78 O d. 0.89arrow_forwardWhat is the equivalent inductance between a and b for the circuit shown in the figure: 4₁ L3 9 mH 23.8 mH 26.8 mH 24.8 mH 25.8 mH L₂ 56 mH 6.5 mH L4 30 mH L5 42 mHarrow_forwardIn a pure inductive load, (without resistive elements), the apparent power is a) Equal to the real power b) Greater than the reactive power c) Equal to the reactive power d) None of the abovearrow_forward
- Determine the equivalent inductance and equivalent current of the inductive circuit in Figure Q4. If L5 is replaced with a capacitor of 0.5 mF, how would it affect the branch current? The alternating Voltage source has an amplitude of 20 Vm. Vm Sine 50 Hz L1 5 mH L2 3 mH cele rele Figure Q4 rele celer L3 6.6 mH L4 2.8 mH reler L5 7 mHarrow_forwardQUESTION 3 An inductor and a 330 ohm resistor are connected in series with a function generator. The current is 89.8mA RMS 5kHz. The reactive power is 3.04 var. Find the value of the inductance. O 12mH O 24mH O 6mH O 18mHarrow_forwardA 206.0-2 resistor and a 2.80-µF capacitor are connected in series across the terminals of a sinusoidal emf with a frequency of 150 Hz. The inductance of the circuit is negligible. What is the impedance of the circuit?arrow_forward
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