Fundamentals of Physics Extended
10th Edition
ISBN: 9781118230725
Author: David Halliday, Robert Resnick, Jearl Walker
Publisher: Wiley, John & Sons, Incorporated
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Chapter 30, Problem 9Q
To determine
To find:
The ranks of the circuits according to the current through the resistor R
a) Long after the switch is closed
b) Just after the switch is reopened a long time later, and
c) Long after it is reopened.
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91 SSM In the circuit of Fig. 30-76,
R = 20 kn, R2 = 20 N, L = 50 mH,
and the ideal battery has & = 40 V.
Switch S has been open for a long
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L.
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R2
time when it is closed at time t = 0.
Just after the switch is closed, what
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are (a) the current ibat through the
battery and (b) the rate dipal dt?
At t = 3.0 us, what are (c) ibat and
(d) dipaldt? A long time later, what are (e) ibat and (f) dipal dr?
Figure 30-76 Problem 91.
9 Figure 30-29 shows three circuits
with identical batteries, inductors,
Figure 30-28 Question 8.
and resistors. Rank the circuits,
greatest first, according to the current through the resistor labeled
R (a) long after the switch is closed, (b) just after the switch is
reopened a long time later, and (c) long after it is reopened.
R.
(1)
(2)
(3)
Figure 30-29 Question 9.
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**.26 o For the wire arrangement
in Fig. 30-49, a = 12.0 cm and b
16.0 cm. The current in the long
straight wire is i = 4.502 – 10.01,
where i is in amperes and t is in sec-
onds. (a) Find the emf in the square
loop at t= 3.00 s. (b) What is the
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Figure 30-49 Problem 26.
direction of the induced current in
the loop?
Chapter 30 Solutions
Fundamentals of Physics Extended
Ch. 30 - If the circular conductor in Fig. 30-21 undergoes...Ch. 30 - Prob. 2QCh. 30 - Prob. 3QCh. 30 - Prob. 4QCh. 30 - Prob. 5QCh. 30 - Prob. 6QCh. 30 - Prob. 7QCh. 30 - Prob. 8QCh. 30 - Prob. 9QCh. 30 - Prob. 10Q
Ch. 30 - Figure 30-31 shows three situations in which a...Ch. 30 - Figure 30-32 gives four situations in which we...Ch. 30 - Prob. 1PCh. 30 - A certain elastic conducting material is stretched...Ch. 30 - Prob. 3PCh. 30 - A wire loop of radius 12 cm and resistance 8.5 is...Ch. 30 - Prob. 5PCh. 30 - Figure 30-37a shows a circuit consisting of an...Ch. 30 - In Fig. 30-38, the magnetic flux through the loop...Ch. 30 - Prob. 8PCh. 30 - Prob. 9PCh. 30 - Prob. 10PCh. 30 - A rectangular coil of N turns and of length a and...Ch. 30 - Prob. 12PCh. 30 - Prob. 13PCh. 30 - GO In Fig. 30-42a, a uniform magnetic field B...Ch. 30 - GO A square wire loop with 2.00 m sides is...Ch. 30 - GO Figure 30-44a shows a wire that forms a...Ch. 30 - A small circular loop of area 2.00 cm2 is placed...Ch. 30 - Prob. 18PCh. 30 - ILW An electric generator contains a coil of 100...Ch. 30 - At a certain place, Earths magnetic field has...Ch. 30 - Prob. 21PCh. 30 - A rectangular loop area = 0.15 m2 turns in a...Ch. 30 - SSM Figure 30-47 shows two parallel loops of wire...Ch. 30 - Prob. 24PCh. 30 - GO Two long, parallel copper wires of diameter 2.5...Ch. 30 - GO For the wire arrangement in Fig. 30-49, a =...Ch. 30 - ILW As seen in Fig. 30-50, a square loop of wire...Ch. 30 - Prob. 28PCh. 30 - Prob. 29PCh. 30 - Prob. 30PCh. 30 - Prob. 31PCh. 30 - A loop antenna of area 2.00 cm2 and resistance...Ch. 30 - GO Figure 30-54 shows a rod of length L = 10.0 cm...Ch. 30 - Prob. 34PCh. 30 - Prob. 35PCh. 30 - Prob. 36PCh. 30 - Prob. 37PCh. 30 - Prob. 38PCh. 30 - Prob. 39PCh. 30 - Prob. 40PCh. 30 - A circular coil has a 10.0 cm radius and consists...Ch. 30 - Prob. 42PCh. 30 - Prob. 43PCh. 30 - Prob. 44PCh. 30 - Prob. 45PCh. 30 - Prob. 46PCh. 30 - Inductors in series. Two inductors L1 and L2 are...Ch. 30 - Prob. 48PCh. 30 - Prob. 49PCh. 30 - Prob. 50PCh. 30 - ILW The current in an RL circuit drops from 1.0 A...Ch. 30 - Prob. 52PCh. 30 - Prob. 53PCh. 30 - Prob. 54PCh. 30 - Prob. 55PCh. 30 - Prob. 56PCh. 30 - In Fig. 30-65, R = 15 , L = 5.0 H, the ideal...Ch. 30 - Prob. 58PCh. 30 - Prob. 59PCh. 30 - Prob. 60PCh. 30 - Prob. 61PCh. 30 - A coil with an inductance of 2.0 H and a...Ch. 30 - Prob. 63PCh. 30 - Prob. 64PCh. 30 - Prob. 65PCh. 30 - A circular loop of wire 50 mm in radius carries a...Ch. 30 - Prob. 67PCh. 30 - Prob. 68PCh. 30 - ILW What must be the magnitude of a uniform...Ch. 30 - Prob. 70PCh. 30 - Prob. 71PCh. 30 - Prob. 72PCh. 30 - Prob. 73PCh. 30 - Prob. 74PCh. 30 - Prob. 75PCh. 30 - Prob. 76PCh. 30 - Prob. 77PCh. 30 - Prob. 78PCh. 30 - SSM In Fig. 30-71, the battery is ideal and = 10...Ch. 30 - Prob. 80PCh. 30 - Prob. 81PCh. 30 - A uniform magnetic field B is perpendicular to the...Ch. 30 - Prob. 83PCh. 30 - Prob. 84PCh. 30 - Prob. 85PCh. 30 - Prob. 86PCh. 30 - Prob. 87PCh. 30 - Prob. 88PCh. 30 - A coil with an inductance of 2.0 H and a...Ch. 30 - Prob. 90PCh. 30 - Prob. 91PCh. 30 - Prob. 92PCh. 30 - Prob. 93PCh. 30 - A long cylindrical solenoid with 100 turns/cm has...Ch. 30 - Prob. 95PCh. 30 - A square loop of wire is held in a uniform 0.24 T...Ch. 30 - Prob. 97PCh. 30 - The inductance of a closely wound coil is such...Ch. 30 - The magnetic field in the interstellar space of...Ch. 30 - Prob. 100PCh. 30 - A toroid has a 5.00 cm square cross section, an...
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- A coil of 40 mH is crossed by a current of 2 A. The coil is connected to a resistance of 25 while the current is falling. (a) What is the time constant t of the circuit? (b) What is the current in the coil after a time of 1.6 ms? (c) What is the voltage across the resistor after 1.6 ms? (d) What is the voltage across the coil after 1.6 ms?arrow_forward**57 Go In Fig. 30-63, R = 15 N, L = 5.0 H, the ideal battery has & = 10 V, and the fuse in the upper branch is an ideal 3.0 A fuse. It has Fuse R zero resistance as long as the cur- rent through it remains less than 3.0 L. A. If the current reaches 3.0 A, the fuse “blows" and thereafter has in- finite resistance. Switch S is closed Fig. 30-63 Problem 57. at time t= 0. (a) When does the fuse blow? (Hint: Equation 30-41 does not apply. Rethink Eq. 30-39.) (b) Sketch a graph of the current i through the inductor as a function of time. Mark the time at which the fuse blows.arrow_forward6) S R b N а +| E Emk ɛ = 400V, resistor R = 100, switch S and a toroid of N = 104 number of turns are connected in series as shown in the figure. Height, Inner and outer radii of the toroid are h = 10cm, a = 10cm and b = 20cm respectively. No current flows through the toroid. Now the switch S is thrown dlosed at t=0. What is the energy of the toroid at t=0,4s. Ho = 4 × 10-7() a) 18,36J b) 162,7J c) 491,75J d) 993,65J e) 1641,56Jarrow_forward
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