ELECTRICAL ENGINEERING(LL)-W/MODMAS AC
7th Edition
ISBN: 9780134680620
Author: HAMBLEY
Publisher: PEARSON
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Question
Chapter 1, Problem 1.39P
To determine
The value of currents
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The element shown in Figure P1.24 has v(t) = 10 V and i(t) = 2 e-t A. Compute the power for the circuit element. Find the energy transferred between t = 0 and t = ∞. Is this energy absorbed by the element or supplied by it?
COURSE: HIGH VOLTAGE TECHNIQUE
In an insulating environment consisting of insulating oil (Ɛr1=12.5) and porcelain (Ɛr2=2.5), the electric field enters the porcelain environment through the oil at an angle of 50 relative to the normal of the border surface. Since the field strength is 87 kV/cm in oil environment, calculate the electric field strength in the porcelain environment, the tangent and normal components of the electric field strength in both environments.
PLEASE MAKE A DETAILED SOLUTION!
Answer the following point in detail and rigorously. Instead of resorting to formulas, develop from basic principles (laws of voltages and currents, definition of electrical power, among others).
a) What meaning would you give to the P consumed by an element? Which to Q?
Chapter 1 Solutions
ELECTRICAL ENGINEERING(LL)-W/MODMAS AC
Ch. 1 - Broadly speaking, what are the two main objectives...Ch. 1 - Prob. 1.2PCh. 1 - List eight subdivisions of electrical engineering.Ch. 1 - Prob. 1.4PCh. 1 - Prob. 1.5PCh. 1 - In the fluid-flow analogy for electrical circuits,...Ch. 1 - The charge of an electron is 1.601019C . A current...Ch. 1 - The ends of a length of wire are labeled a and b....Ch. 1 - The circuit element shown in Figure P1.9 has v=12V...Ch. 1 - Prob. 1.10P
Ch. 1 - The net charge through a cross section of a...Ch. 1 - The current through a particular circuit element...Ch. 1 - The current through a given circuit element is...Ch. 1 - The net charge through a cross section of a...Ch. 1 - A copper wire has a diameter of 2.05 mm and...Ch. 1 - A certain lead acid storage battery has a mass of...Ch. 1 - A circuit element having terminals a and b has...Ch. 1 - An electron moves through a voltage of 9 V from...Ch. 1 - A typical “deep-cycle” battery (used for electric...Ch. 1 - Define the term passive reference configuration....Ch. 1 - Compute the power for each element shown in Figure...Ch. 1 - The terminals of an electrical device are labeled...Ch. 1 - The terminals of a certain battery are labeled a...Ch. 1 - The element shown in Figure P1.24 I has v(t)=10V...Ch. 1 - The current and voltage of an electrical device...Ch. 1 - Suppose that the cost of electrical energy is...Ch. 1 - Figure P1.27 shows an ammeter (AM) and voltmeter...Ch. 1 - Repeat Problem P1.27 with the meters connected as...Ch. 1 - A certain type of D-cell battery that costs $0.50...Ch. 1 - The electronics aboard a certain sailboat consume...Ch. 1 - What s a node in an electrical circuit? Identify...Ch. 1 - State Kirchhoff’s current law.Ch. 1 - Two electrical elements are connected in series....Ch. 1 - Suppose that in the fluid-flow analogy for an...Ch. 1 - Identify elements that are in series in the...Ch. 1 - Consider the circuit shown in Figure P1.36. Which...Ch. 1 - Use KCL to find the values of ia, ic , and id for...Ch. 1 - Find the values of the other currents in Figure...Ch. 1 - Prob. 1.39PCh. 1 - State Kirchhoff’s voltage law.Ch. 1 - Consider the circuit shown in Figure P1.36. Which...Ch. 1 - Use KVL to solve for the voltages va , vb, and vc...Ch. 1 - Solve for the other voltages shown in Figure P1.43...Ch. 1 - Use KVL and KCL to solve for the labeled currents...Ch. 1 - Identify elements that are in parallel in Figure...Ch. 1 - Points a, b, c, and d appear in a certain circuit....Ch. 1 - In your own words, define an ideal conductor; an...Ch. 1 - Name four types of dependent sources and give the...Ch. 1 - State Ohm’s law, including references.Ch. 1 - Draw a circuit that contains a 5 resistance, a...Ch. 1 - Repeat Problem P1.50, placing all three elements...Ch. 1 - The resistance of a certain copper wire is 0.5. ....Ch. 1 - Draw a circuit that contains a 5 resistor, a 10-V...Ch. 1 - Draw a circuit that contains a 5 resistor, a 10-V...Ch. 1 - A power of 100 W is delivered to a certain...Ch. 1 - The voltage across a 10 resistor is given by...Ch. 1 - The voltage across a 10 resistor is given by...Ch. 1 - A certain wire has a resistance of 0.5 . Find the...Ch. 1 - Plot i versus v to scale for each of the parts of...Ch. 1 - Which of the following are self-contradictory...Ch. 1 - Consider the circuit shown in Figure P1.61. Find...Ch. 1 - Consider the circuit shown in Figure P1.62. Find...Ch. 1 - Consider the circuit shown in Figure P1.63. Find...Ch. 1 - Consider the circuit shown in Figure P1.64. Use...Ch. 1 - Determine the value of Ix in the circuit shown in...Ch. 1 - Consider the circuit shown in Figure P1.66. Figure...Ch. 1 - Prob. 1.67PCh. 1 - Consider the circuit shown in Figure P1.68. Figure...Ch. 1 - Solve for the currents shown in Figure P1.69....Ch. 1 - The circuit shown in Figure P1.70 contains a...Ch. 1 - Determine the value of vx and iy in the circuit...Ch. 1 - A 10-V independent voltage source is in series...Ch. 1 - A 10-V independent voltage source is in parallel...Ch. 1 - Consider the circuit shown in Figure P1.74. Figure...Ch. 1 - The circuit shown in Figure P1.75 contains a...Ch. 1 - For the circuit shown in Figure P1.76, solve for...Ch. 1 - For the circuit shown in Figure P1.77, solve for...Ch. 1 - Match each entry in Table T1.1(a) with the best...Ch. 1 - Prob. 1.2PTCh. 1 - The circuit of Figure T1.3 has I1=3A , I2=1A ,...Ch. 1 - The circuit shown in Figure T1.4 has Vs=12V ,...Ch. 1 - We are given Vs=15V , R=10 , and =0.3S for the...Ch. 1 - We are given i4=2A for the circuit of Figure T1.6....
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Similar questions
- The current through a given circuit element is given by i(t) = 2 e−t A. Find the net charge that passes through the element in the interval from t = 0 to t = ∞ [Hint:Current is the rate of flow of charge. Thus, to find charge, we must integrate current with respectto time.]arrow_forwardFor the circuit shown in Figure P1.77, solve for the current i x. What types of sources are present in this circuit?arrow_forwardPart (a) What is the magnitude of the induced emf, ε1, in millivolts, at time t1=1.0ms? |ε1| = ______ mV Part (b) What is the magnitude of the induced emf, ε2, in millivolts, at the time t2=3.0ms? |ε2| = ______ mV Part (c) What is the magnitude of the induced emf, ε3, in millivolts, at time t3=5.5ms? |ε3| = ______ mVarrow_forward
- Given:Vb = 100 voltsR = 10000 ohmsC = 200 μFAssuming that after a long period of time, the switch is flipped from position "A" to position "B" at t=0. Determine the current in the source-free circuit after 1 second.arrow_forwardDetermine a.) the currents I1, I2, I3, I4, I5, and I6, then b.) the potential at b, c, d, e, and h.arrow_forwardCan you solve it in a descriptive way? electromagnetic 2arrow_forward
- Kirchhoff's Law What is meant by difference in potential? Show that it is possible for two or more emf's to exist within a circuit without there being any difference of potential between the circuit terminals.arrow_forwardTwo long straight current-carrying wires are lined up parallel to one another in vacuum at a distancedCurrents of I1 and flow I2 through the wires, both in the same direction generating the field of B Delta f at a midpoint between themWrite down an expression for BM in terms of the currents running in each of the wires Assume vacuum permeability u= 1arrow_forwardQ1 For the figure shown below answer allthe following 1. Justtell without the details , how muuch work does t take to move a charge a long an equipotential ine from point ato point b ? S 3y fthe potentials are 50v, 15v, 30v. How much Va, VA, VI? And Why? 1£Va = 90v How much Vb2 And why? And how much the potential difference Vcd on the first equipotential line? FH 4.arrow_forward
- Please answer the following points in detail and rigorously. Instead ofresort to formulas, develop from basic principles (laws ofvoltages and currents, definition of electrical power, properties ofphasors, among others) d) Show that the complex power consumed by two elements in parallel is the sum of the individual complex powers. After, repeat the procedure but for two elements in series. e) What meaning would you give to the P consumed by an element? Which to Q? f) Suppose you know P and Q for a two-terminal element. What is the power factor of this element? When would i be in early and when behind? g) Suppose you know the equivalent resistance R and the reactance X equivalent of a two-terminal passive network. What is the factor power of red bliss? When would I be in advance and when in backwardness?arrow_forwardsolve for the following dc quantities:a. V B(Q1) . b. V E(Q1) . c. I E(Q1) . d. V C(Q1) . e. V B(Q2) . f. V E(Q2) . g. I E(Q2) . h. V C(Q2) .arrow_forwardFor the circuit shown in Figure P1.76, solve for i s. What types of sources are present in this circuit?arrow_forward
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