9.6 During a weather storm, an atmospheric discharge hits alightning pole. The pole is grounded through a hemisphere. Themaximum value of the lightning current through the pole is 10kA. The soil of the area is moist. A man who is walking 20 m awayfrom the center of the hemisphere experiences an excessive steppotential. The man's body resistance is 1500 §. Assume that thestep of the person is about 0.6 m. Compute the current through hislegs and his step potential.

Answered: 9.6 During a weather storm, an…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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1) Resistance in a circuit will cause the delay in the time for charging a capacitor. (True or false) 2) With increase in the frequency of the supply, Inductive reactance of an inductor will _______ (decrease or increase) 3) In an ac circuit, the voltage ______ a) leads the current b) is in phase with the current c) lags the current d) any of the above, depending on the circumstances 4) When the supply frequency increases, then the Capacitive Reactance (Xc ) in a circuit will a) Remain Same b) increase c) decrease 5) In a pure inductive circuit, the phase angle between the voltage waveform and current waveform will have ___ phase shift a) 180 deg b) 0 deg c) 45 deg d) 90 deg
4.Suspension string has 3 units. Each unit can with stand a maximum voltage of 11kV. The capacitance of each joint and metal work is 30 percent of the capacitance of each disc. Find i) Maximum line voltage for which the string can be used?
7. Ohm's Law states that, for a steady current, the current in a circuit is total emf acting in the circuit and is proportional to the proportional to the total resistance. 8. is the rate of doing work, or rate of expenditure of energy, and its unit is
A coil is made up of 1000 turns of 0.5 mm^2 cross-sectional area copper wire. The average length each turn is 100 cm, and the copper resistivity is 0.02 µΩ m at 20 degrees Celsius. Determine the coil's resistance. Find the resistance of the coil at 20 degrees Celsius. * 30 ohm 40 ohm 50 ohm 60 ohm Find the resistance of the coil at 100 degrees Celsius if the temperature coefficient of resistance at 30 degrees Celsius is 3.7807 x 10^(-3) per degrees Celsius * 32.57 ohm 42.57 ohm 52.57ohm 62.57 ohm
b) Referring to Figure 6, given that the peak voltage Vp = 24 v. Determine: i. The period, T ii. The frequency, f. iii. The angular velocity, w. iv. The voltage, VRMS V. Write the mathematical expression for the sine wave in Figure 6 to represent the ac voltage. c) Determine the instantaneous voltage at: i. t = 10 µs. i. t = 70 µs v(t) 75 175 t (us) 125 Figure 6
Calculate the current taken by a 100microfarad capacitor when connected to a 200V, 100Hz supply. A. 1.257A B. 1.275A C. 1.752 A D. 1.725
ELECTRICAL CIRCUIT: Solve the problem and show your complete solution. Three different coil produce the same electromotive force of 100V when moved at a constant speed in the magnetic field. The induced EMF in the first coil lags to the induced EMF in the second coils and leads to the induced EMF in the third coil. a. What will be the resultant EMF in the series combination of the 3 coils. b. If all the phasors are in the same phase what is the resultant EMF?
What is the units for the following : ● Resistance ● Voltage ● Current ● Conductance ● Capacitance ● Power ● Energy ● Work ● Frequency ● Impedance
Thank you And please kindly write legibly because I'm having a hard time reading, guessing, and understanding the handwriting of different experts recently. Thanks Please refer to the photo below. Activity: Series and Parallel Capacitance
2. A wind turbine travels with the speed is 15 m/s and has a blade length of 50m. Determine a) Kinetic power available in wind b) Turbine power if the power coefficient is maximum
Two cities are 150 km apart. Electric power is sent from one city to another city through copper wires. The fall of potential per km is 8 volt and the average resistance per km is 0.52. The power loss in the wire is
Which of the following statement best describes results of power and energy of three passive circı it elements subjected to sinusoidal excitation? 6 Frequency of response is doubled as does that of power and energy Frequency of response stays the same but that of power and energy is doubled Frequency of response, energy and power stays the same since these elements are linear time invariant and passive. Frequency of response and power is doubled but that of energy stays the same

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