Physics for Scientists and Engineers
10th Edition
ISBN: 9781337553278
Author: Raymond A. Serway, John W. Jewett
Publisher: Cengage Learning
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Chapter 30, Problem 46AP
A rectangular loop of dimensions ℓ and w moves with a constant velocity
Figure P30.46
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Consider the circuit shown in the figure, with =36.0 V,R, =50.02,R=1502 and
L= 4.00 H.
(a) Switch S, is closed. Just after S. is closed, what are the current i, through R, and
the potential differences V and Va ?
AC
(b) After S. has been closed a long time so that the current has reached its final, steady
value, what are i, . VAc and Ve ?
(c) Find the expressions for i, , Vac and Ve as functions of time since S, was closed.
Do your results agree with what you get in (a) and (b) ? Graph i, . Vsc and Ve as a
function oftime.
Ro
L
A
The capacitor in the circuit shown below is initially uncharged. The switch is closed at t = 0 s. ΔVbattery = 30 V, C = 3.0 F, and R = 2.0 Ω. At sometime after the switch is closed, the current in the circuit is measured to be 6.1 A. What is the charge on the capacitor at this time, in Coulomb?
A (1.91x10^2)-mA current is used to charge up a parallel plate capacitor. A large
square piece of paper is placed between the plates and parallel to them so it sticks
out on all sides. What is the value of the integral P B. ds around the perimeter of
the paper? Express your result in T.m with three significant figures.
Chapter 30 Solutions
Physics for Scientists and Engineers
Ch. 30.1 - A circular loop of wire is held in a uniform...Ch. 30.2 - In Figure 30.8a, a given applied force of...Ch. 30.3 - Figure 30.12 Figure 30.12 shows a circular loop of...Ch. 30.5 - Prob. 30.4QQCh. 30 - A circular loop of wire of radius 12.0 cm is...Ch. 30 - An instrument based on induced emf has been used...Ch. 30 - Scientific work is currently under way to...Ch. 30 - A long solenoid has n = 400 turns per meter and...Ch. 30 - An aluminum ring of radius r1 = 5.00 cm and...Ch. 30 - An aluminum ring of radius r1 and resistance R is...
Ch. 30 - A coil formed by wrapping 50 turns of wire in the...Ch. 30 - When a wire carries an AC current with a known...Ch. 30 - A toroid having a rectangular cross section (a =...Ch. 30 - A small airplane with a wingspan of 14.0 m is...Ch. 30 - A helicopter (Fig. P30.11) has blades of length...Ch. 30 - A 2.00-m length of wire is held in an eastwest...Ch. 30 - A metal rod of mass m slides without friction...Ch. 30 - Prob. 14PCh. 30 - Prob. 15PCh. 30 - An astronaut is connected to her spacecraft by a...Ch. 30 - You are working for a company that manufactures...Ch. 30 - You are working in a laboratory that uses motional...Ch. 30 - You are working in a factory that produces long...Ch. 30 - You are working in a factory that produces long...Ch. 30 - Within the green dashed circle show in Figure...Ch. 30 - Prob. 22PCh. 30 - Prob. 23PCh. 30 - Figure P30.24 (page 820) is a graph of the induced...Ch. 30 - The rotating loop in an AC generator is a square...Ch. 30 - In Figure P30.26, a semicircular conductor of...Ch. 30 - Prob. 27PCh. 30 - Suppose you wrap wire onto the core from a roll of...Ch. 30 - A rectangular loop of area A = 0.160 m2 is placed...Ch. 30 - A rectangular loop of area A is placed in a region...Ch. 30 - A circular coil enclosing an area of 100 cm2 is...Ch. 30 - Consider the apparatus shown in Figure P30.32: a...Ch. 30 - A guitars steel string vibrates (see Fig. 30.5)....Ch. 30 - Why is the following situation impossible? A...Ch. 30 - A conducting rod of length = 35.0 cm is free to...Ch. 30 - Magnetic field values are often determined by...Ch. 30 - The plane of a square loop of wire with edge...Ch. 30 - In Figure P30.38, the rolling axle, 1.50 m long,...Ch. 30 - Figure P30.39 shows a stationary conductor whose...Ch. 30 - Prob. 40APCh. 30 - Figure P30.41 shows a compact, circular coil with...Ch. 30 - Review. In Figure P30.42, a uniform magnetic field...Ch. 30 - An N-turn square coil with side and resistance R...Ch. 30 - A conducting rod of length moves with velocity v...Ch. 30 - A long, straight wire carries a current given by I...Ch. 30 - A rectangular loop of dimensions and w moves with...Ch. 30 - A thin wire = 30.0 cm long is held parallel to...Ch. 30 - An induction furnace uses electromagnetic...Ch. 30 - Prob. 49CPCh. 30 - A betatron is a device that accelerates electrons...Ch. 30 - Review. The bar of mass m in Figure P30.51 is...
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- The capacitor in the circuit shown below is initially uncharged. The switch is closed at t = 0 s. AVbattery = 30 V, C = 3.0 F, and R=2.0 Q. At sometime after the switch is closed, the current in the circuit is measured to be 3.1 A. What is the charge on the capacitor at this time, in Coulomb? Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.arrow_forwardThe figure below is a cross-sectional view of a coaxial cable. The center conductor is surrounded by a rubber layer, an outer conductor, and another rubber layer. In a particular application, the current in the inner conductor is I1 = 1.12 A out of the page and the current in the outer conductor is I2 = 3.04 A into the page. Assuming the distance d = 1.00 mm, answer the following. PS:Please make sure your answer is in µTarrow_forwardThe rod shown below moves to the right on essentially zero-resistance rails at a speed of v = 2.7 m/s. B 5.0 N 4.0 cm If B = 0.99 T everywhere in the region, what is the current (in mA) through the 5.0 0 resistor? mA Does the current circulate clockwise or counterclockwise? O clockwise counterclockwise 1>arrow_forward
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