A thin coil is located at the origin; its radius is 2 cm and itsaxis lies on the x axis. It has 35 low-resistance turns and isconnected to a 75 resistor. A second thin coil is located at<17, 0, 0> cm and is traveling toward the origin with a speedof 8 m/s; it has 55 low-resistance turns, its axis lies on the xaxis, its radius is 5 cm, and it has a current of 13 A, poweredby a battery. What is the magnitude of the current in thefirst coil?i!A

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Answered: A thin coil is located at the origin;…

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter29: Direct Current (dc) Circuits

Section: Chapter Questions

Problem 60PQ: Figure P29.60 shows a simple RC circuit with a 2.50-F capacitor, a 3.50-M resistor, a 9.00-V emf,...

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Figure P29.60 shows a simple RC circuit with a 2.50-F capacitor, a 3.50-M resistor, a 9.00-V emf, and a switch. What are a. the charge on the capacitor, b. the current in the resistor, c. the rate at which the capacitor is storing energy, and d. the rate at which the battery is delivering energy exactly 7.50 s alter the switch is closed?
(a) Find the current in each resistor of Figure P18.18 by using the rules for resistors in series and parallel. (b) Write three independent equations for the three currents using Kirchhoffs laws: one with the node rule; a second using the loop rule through the battery, the 6.0- resistor, and the 24.0- resistor; and the third using the loop rule through the 12.0- and 24.0- resistors. Solve to check the answers found in part (a). Figure Pl8.18
(a) Find the current in each resistor of Figure P18.18 by using the rules for resistors in series and parallel. (b) Write three independent equations for the three currents using Kirchhoffs laws: one with the node rule; a second using the loop rule through the battery, the 6.0- resistor, and the 24.0- resistor; and the third using the loop rule through the 12.0- and 24.0- resistors. Solve to check the answers found in part (a). Figure Pl8.18
. The generator at a large power plant has an output of 1,000,000 kW at 24,000 V. (a) If it were a DC generator, what would he the current in it? (b) What is its energy output each day—in joules and in kilowatt—hours? (c) If this energy is sold at a price of 10 cents per kilowatt-hour, how much revenue does the power plant generate each day?
Figure P29.84 shows a circuit that consists of two identical emf devices. If R1 = R2 = R and the switch is closed, find an expression (in terms of R and ) for the current I that is in the branch from point a to b.
RAŽ ŽRB Rc RD ɛ = 12 V, RA = 5 Q, RB = 3 2, Rc = 1 Q, and Rp = 3 2. The switch is open. a) What is the battery current? (include units) b) What is the difference in electric potential between points a and b? (include units) c) The switch is closed. What is the battery current? (include units) d) The switch is closed. What is the difference in electric potential between points a and b? (include units)
Problem 5: An LR circuit includes a basic switch, two voltmeters and an ammeter. Initially there is no current. Data collection begins, and then the switch is moved to position "a" allowing the current to flow. a R Vo Part (a) Which graph best represents the current measured with the ammeter as a function of time?
The values of the components in a simple series RC circuit containing a switch and an initially uncharged capacitor (see figure below) are C = 1.50 µF, R = 2.30 MN, and E = 10.0 V. R (a) the charge on the capacitor... ...a long time after the switch is closed 900 = ..4.1 s after the switch is closed q = (b) the current in the resistor... ...immediately after the switch is closed In = HA ..4.1 s after the switch is closed I = HA ... a long time after the switch is closed I, = (c) The rate at which energy, 4.1 s after the switch is closed, is... ...being dissipated in the resistor Presistor = ...being stored in the capacitor Рсаpаcitor %3D µW
sa R O e-t/T with T = 4.5μs R A The figure shows an ideal battery of voltage V, a resistor of resistance R = 12.0 2, and an uncharged capacitor of capacitance C = 3.5 µF. What is the current through the resistor at time t after the switch S is closed? O e-t/Twith T = 42μs R O VRe-t/T with 7 = 3.4μs Oet/T with T = 3.4µs R O VRe-t/T with T = 45μs с
A salenoid is 0.15 m long, has a radius of 0.04m, and contains 1250 turns. It is hooked up to a 9-Volt battery and a switch. When the switch is closed it lakes 35 milliseconds to reach 75% of the maximum current. What is the resistance ot this circuit?
A galvanometer has a coil resistance of Rgaly = 84.9 Q. It is to be made into a voltmeter with a full-scale voltage equal to V = 265.0 V. If the galvanometer deflects full scale for a current of Igaly 185.5 mA, what size additional resistor should be used? additional resistor size:
For the cirouit shown in the figure, the switch Sis initisly open and the capacitor voltage is 78 V. The switch is then dlosed at time =0. Aher closing the switch, what is the time (in s) wil the current in the resistor be 5 22 uF 2.8 MO El- ww

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