Introductory Circuit Analysis
13th Edition
ISBN: 9780133923919
Author: Boylestad, Robert L.
Publisher: Pearson Education
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Chapter 11, Problem 49P
To determine
To verify the mathematical expression for the transient behaviour of
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Chapter 11 Solutions
Introductory Circuit Analysis
Ch. 11 - For the electromagnet in Fig. 11.75: a. Find the...Ch. 11 - For the inductor in Fig. 11.76, find the...Ch. 11 - a. Repeat Problem 2 with a ferromagnetic core with...Ch. 11 - For the inductor in Fig. 11.77, find the...Ch. 11 - An air-core inductor has a total inductance of 4.7...Ch. 11 - What are the inductance and the range of expected...Ch. 11 - If the flux linking a coil of 50 turns changes at...Ch. 11 - Determine the rate of change of flux linking a...Ch. 11 - How many turns does a coil have if 42 mV are...Ch. 11 - Find the voltage induced across a coil of 22 mH if...
Ch. 11 - For the circuit of Fig. 11.78 composed of standard...Ch. 11 - For the circuit in Fig. 11.79 composed of standard...Ch. 11 - For the network of Fig. 11.80. a. Write the...Ch. 11 - Give a supply of 18 V, use standard values to...Ch. 11 - For the circuit in Fig. 11.82: a. Write the...Ch. 11 - In this problem, the effect of reversing the...Ch. 11 - For the network of Fig. 11.84: a. Find the...Ch. 11 - Prob. 18PCh. 11 - Prob. 19PCh. 11 - Prob. 20PCh. 11 - For the network in Fig. 11.88: a. Determine the...Ch. 11 - For the network in Fig. 11.89: a. Write the...Ch. 11 - Prob. 23PCh. 11 - For Fig. 11.91: a. Determine the mathematical...Ch. 11 - For Fig. 11.92: a. Determine the mathematical...Ch. 11 - For the network in Fig. 11.93, the switch is...Ch. 11 - The switch in Fig. 11.94 has been open for a long...Ch. 11 - Prob. 28PCh. 11 - The switch for the network in Fig. 11.96 has been...Ch. 11 - The switch in Fig. 11.97 has been closed for a...Ch. 11 - Given iL=100mA(1e-t/20ms) a. Determine iLatt=1ms....Ch. 11 - a. If the measured current for an inductor during...Ch. 11 - The network in Fig. 11.98 employs a DMM with an...Ch. 11 - Find the waveform for the voltage induced across a...Ch. 11 - Find the waveform for the voltage induced across a...Ch. 11 - Prob. 36PCh. 11 - Find the total inductance of the circuit of Fig....Ch. 11 - Find the total inductance for the network of Fig....Ch. 11 - Reduce the network in Fig. 11.104 to the fewest...Ch. 11 - Reduce the network in Fig. 11.105 to the fewest...Ch. 11 - Reduce the network of Fig. 11.106 to the fewest...Ch. 11 - For the network in Fig. 11.107: a. Write the...Ch. 11 - For the network in Fig. 11.108: a. Write the...Ch. 11 - For the network in Fig. 11.109. a. Find the...Ch. 11 - Find the steady-state currents I1 and I2 for the...Ch. 11 - Find the steady-state currents and voltages for...Ch. 11 - Find the steady-state currents and voltages for...Ch. 11 - Find the indicated steady-state currents and...Ch. 11 - Prob. 49PCh. 11 - Using PSpice or Multisim, verify the results of...Ch. 11 - Using the PSpice or Multisim, find the solution to...Ch. 11 - Using PSpice or Multisim, find the solution to...Ch. 11 - Using PSpice or Multisim, verify the results of...
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- The power factor of a certain load is improved to 0.92 lagging with the addition of a 30 kVAR bank of capacitors. If the resulting supply apparent power is 200 kVA, determine the power factor before correction.arrow_forwardProblem 11.34. At full load, a commercially available 106 hp, three-phase induction motor operates at an efficiency of 96% and a power factor of 0.87 lag. The motor is supplied from a three-phase outlet with a line-voltage rating of 208 V. 1. What is the magnitude of the line current in Ampere drawn from the 208 V outlet? (1 hp = 746 W). 2. Calculate the reactive power in kVAR supplied to the motor.arrow_forward. A power station has a connected load of 48 MW. The energy generated for the year is 61,500 MWh. If the station has a load factor of 35%, solve the demand factor of the station. Answer: 0.4179 or 41.79% Subject: Distribution System and Substation Designarrow_forward
- A DC generator supplies current to 40 lamps with a power of each60 Watts each. Calculate the current IL. Calculate the magnitude of the voltage generated by the generator in problem 1, if Ra = 0.1 Ohm and Rsh = 50 Ohmarrow_forwardA 3-Φ, 5 KW induction motor has a p.f of 0.75 lagging. A bank of capacitors is connected in delta across the supply terminals and p.f raised to 0.9 lagging. Determine the KVAR rating of the capacitor connected in each phase. Also comment on the type of supplied KVAR, Whether it is unity, leading or lagging.arrow_forwardA load of 500 kVA operates on 1100 V, 50 Hz mains with power factor of 0.6 lagging. It is required to improve the power factor to 0.95 lagging by using the star connected capacitor bank. Assuming that the load KVA remains constant, suggest the rating of the capacitors.arrow_forward
- The two wattmeters in Fig. 11.20 can be used to compute the total reactive power of the load. Prove this statement by showing that 3(W2−W1)=3VLIL sinθϕ.arrow_forwardAn ac motor is connected to a 560v, 60hz line. The motor has a current draw at full load of 53A. A wattmeter indicates a true power of 18 700 W. Find the power factor of the motor and the amount of capacitance that should be connected in parallel with the motor to correct the power factor to 100% or unity.arrow_forwardIf the apparent power of a source is known, then the power factor, active and reactive powers can be calculated from it. Select one: True Falsearrow_forward
- A 3-phase, 50 Hz, 3000 V motor develops 600 H.P. (447·6 kW), the power factor being 0·75 lagging and the efficiency 0·93. A bank of capacitors is connected in delta across the supply terminals and power factor raised to 0·9 lagging. Each of the capacitance units is built of five similar 600-V capacitors. Determine the leading Kvar taken by each three sets.arrow_forwardIn a 30kVA, 2000/220V power transformer, the iron and full load copper losses are 400W and 450W respectively. Calculate the efficiency at unity power factor in half load condition.arrow_forwardA 132MW generator sends power to an industrial load at 132kV, 500A, Unity power factor. Excluding all losses, the effiency is :arrow_forward
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