Essential University Physics (3rd Edition)
3rd Edition
ISBN: 9780134202709
Author: Richard Wolfson
Publisher: PEARSON
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Chapter 27, Problem 8FTD
To determine
To explain: Why the bulb flashes brightly when the switch is opened in the circuit.
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Check out a sample textbook solutionStudents have asked these similar questions
An inductor L=47 H is connected in series with a resistor R=25 ohms and a voltage source V=12 V and an initially open switch. At time t=0, he switch is closed. What is the current in the circuit at time t=1.00s?
a) .059 A
b) .097 A
c) .152 A
d) .198 A
(L11) At t = 0 s, a 3.53E-3 H inductor carries a 5.03 A current flowing
from a to b, as shown in the figure. The current then decreases at a
constant rate until it becomes zero at t = 4.10 s. The voltage is measured
to be Va at point a and V₁ at point b. What is the voltage difference Va-Vb
between t = 0s and t = 4.10 s (in V; answer the sign and magnitude)?
a
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L
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I
b
Camera flashes charge a capacitor to high voltage by switching the current through an inductor on and off rapidly.Randomized Variables
L = 2.6 mHI = 0.29 AE = 505 V
In how many seconds must the 0.29 A current through a 2.6 mH inductor be switched on or off to induce an average 505 V emf?
Chapter 27 Solutions
Essential University Physics (3rd Edition)
Ch. 27.3 - You push a bar magnet toward a loop, with the...Ch. 27.3 - Prob. 27.2GICh. 27.3 - If you lower the electrical resistance connected...Ch. 27.3 - A copper penny falls on a path that takes it...Ch. 27.3 - Prob. 27.5GICh. 27.5 - If you keep the current in a solenoid constant...Ch. 27.6 - Prob. 27.8GICh. 27 - In Fig. 27.35, a bar magnet moves toward a...Ch. 27 - Figure 27.36 shows two concentric conducting...Ch. 27 - Fluctuations in Earths magnetic field due to...
Ch. 27 - Chapter 26 stated that a static magnetic field...Ch. 27 - Can an induced electric field exist in the absence...Ch. 27 - A car battery has a 12-V emf, yet energy from the...Ch. 27 - Prob. 7FTDCh. 27 - Prob. 8FTDCh. 27 - Prob. 9FTDCh. 27 - Prob. 10FTDCh. 27 - It takes work to push two bar magnets together...Ch. 27 - A small magnet is dropped into each of two hollow...Ch. 27 - Prob. 13FTDCh. 27 - Show that the volt is the SI unit for the rate of...Ch. 27 - Find the magnetic flux through a 5.0-cm-diameter...Ch. 27 - A circular wire loop 45 cm in diameter has...Ch. 27 - Prob. 17ECh. 27 - Prob. 18ECh. 27 - Find the self-inductance of a 1500-turn solenoid...Ch. 27 - Prob. 20ECh. 27 - Prob. 21ECh. 27 - Prob. 22ECh. 27 - What inductance should you put in series with a...Ch. 27 - The current in a series RL circuit increases to...Ch. 27 - Prob. 25ECh. 27 - Prob. 26ECh. 27 - Prob. 27ECh. 27 - A 1250-turn solenoid 23.2 cm long and 1.58 cm in...Ch. 27 - Prob. 29ECh. 27 - The worlds strongest magnet that can produce a...Ch. 27 - Find the magnetic-field strength in a region where...Ch. 27 - Prob. 32ECh. 27 - Find an expression for the electric-field strength...Ch. 27 - A conducting loop of area A and resistance R lies...Ch. 27 - A conducting loop with area 0.15 m2 and resistance...Ch. 27 - A square wire loop of side l and resistance R is...Ch. 27 - A 5-turn coil 1.0 cm in diameter is rotated at 10...Ch. 27 - A magnetic field is given by B = B0(x/x0)2k, where...Ch. 27 - Prob. 39PCh. 27 - In Example 27.2 take a = 1.0 cm, w = 3.5 cm, and l...Ch. 27 - A 2000-turn solenoid is 2.0 m long and 15 cm in...Ch. 27 - A stent is a cylindrical tube, often made of metal...Ch. 27 - Prob. 43PCh. 27 - Youre an electrical engineer designing an...Ch. 27 - A generator consists of a rectangular coil 75 cm...Ch. 27 - Figure 27.39 shows a pair of parallel conducting...Ch. 27 - Prob. 47PCh. 27 - Prob. 48PCh. 27 - Prob. 49PCh. 27 - The magnetic field inside a solenoid of circular...Ch. 27 - An electron is inside a solenoid, 28 cm from the...Ch. 27 - During lab, youre given a circular wire loop of...Ch. 27 - A flip coil is used to measure magnetic fields....Ch. 27 - Prob. 54PCh. 27 - Prob. 55PCh. 27 - In Fig. 27.23a, take R = 2.5 k and 0 = 50 V. When...Ch. 27 - How long does it take to dissipate 90% of the...Ch. 27 - Prob. 58PCh. 27 - Prob. 59PCh. 27 - Prob. 60PCh. 27 - In Fig. 27.40, take 0 = 12 V, R1 = 4.0 , R2 = 8.0...Ch. 27 - Prob. 62PCh. 27 - Prob. 63PCh. 27 - Your hospital is installing a new MRI scanner...Ch. 27 - A neutron stars magnetic field is about 108 T....Ch. 27 - Prob. 66PCh. 27 - Prob. 67PCh. 27 - Prob. 68PCh. 27 - An electric field and a magnetic field have the...Ch. 27 - Prob. 70PCh. 27 - Prob. 71PCh. 27 - Prob. 72PCh. 27 - Prob. 73PCh. 27 - A circular wire loop of radius a and resistance R...Ch. 27 - The bar in Problem 46 has mass m and is initially...Ch. 27 - Use the node and loop laws to determine the...Ch. 27 - Prob. 77PCh. 27 - You and your roommate are headed to Cancn for...Ch. 27 - One way to measure blood flow when blood vessels...Ch. 27 - Clever farmers with power lines crossing their...Ch. 27 - Clever farmers with power lines crossing their...Ch. 27 - Clever farmers with power lines crossing their...Ch. 27 - Clever farmers with power lines crossing their...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- In Figure 14.12, =12V , L = 20 mH, and R=5.0. Determine (a) the time constant of the circuit, (b) the initial current through the resistor, (C) the final current through the resistor, (d) the current through the resistor when t=2L , and (e) the voltages across the inductor and the resistor when t=2L .arrow_forwardWhen the current through a large inductor is interrupted with a switch, an are appears across the open terminals of the switch. Explain.arrow_forward3. A 12.0 V battery is connected in series with a 10.0 O resistor, an inductor and a switch. At time t = 0 the switch is closed and current starts to flow. Two seconds after the switch is closed the current in the circuit has increased to one-third of its maximum value. What is the inductance of the inductor (in H)? THIS ISAGROLWING RL CIRCLIT (A) 13.5 (B) 22.8 (C) 49.3 (D) 41.4 (E) 30.0 (F) 5.43 Bolarrow_forward
- 55. One particular plug-in power supply for a radio looks similar to the one shown in Figure 33.20 and is marked with the following information: Input 120 V AC 8 W Output 9 V DC 300 mA. Assume these values are accu- rate to two digits. (a) Find the energy efficiency of the device when the radio is operating. (b) At what rate is energy wasted in the device when the radio is operat- ing? (c) Suppose the input power to the transformer is 8.00 W when the radio is switched off and energy costs $0.110/kWh from the electric company. Find the cost of having six such transformers around the house, each plugged in for 31 days.arrow_forward6) R N. 3. 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 closed at t=0. VWhat is the energy of the toroid at t-0,4s. u. = 4n × 10-7(" 4Tm x a) 18,36J b) 162,7J c) 491,75) d) 993,651 er e) 1641,56Jarrow_forwardE. 6.91 cm" 3. Consider the circuit shown below. The switch S is closed for a very long time so that the current through the inductor Io is constant. At time t = 0 the switch is opened, what is the ratio of the current I through the inductor 75 msec after the switch was opened to the initial current: I/I? A. 0.1 B. 0.2 C. 0.3 D. 0.4 E. 0.5 4.00 £2 W 10.0 V +- 8.00 £2 8.00 2 www 1.00 Harrow_forward
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