Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
4th Edition
ISBN: 9780134110684
Author: Randall D. Knight (Professor Emeritus)
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 30, Problem 74EAP
The inductor in FIGURE P30.74 is a -
cm-long, -
cm- diameter solenoid wrapped with 
turns. What is the current in the circuit 
after the switch is moved from a to b?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A resistor of resistance R = 10 Ω is connected in series with an inductor of L = 15 mH. The RL combination is connected to a variable voltage power supply (V = 4.5 V) by a switch as shown.
a. What is the time constant (τ) of the combination in seconds?
b. The power supply is set to maintain a constant voltage of V = 4.5 V and the switch is closed. Calculate the current, in amperes, through the circuit at t = 0.29 ms after the switch is closed.
c. Calculate the current through the circuit, in amperes, after the switch has been closed for a long time.
An inductor with inductance L resistor with resistance R are wired in series to an ideal battery with emf E. A switch in the circuit is closed at time 0, at which time the current is zero. What are the potential difference across the inductor and resistor a long time after the switch is thrown?
W
R₂
a
a. What is the potential drop on the inductor?
R₁
m
Two resistors, R₁ = 125 § and R2 = 325 92, an inductor L = 3.7 mH, a 16 V battery, and a switch are connected as shown above. The switch has been in position a for a long time.
What is the current through resistor R₁?
What is the current through resistor R₂?
Submit Answer Tries 0/10
L
b. At time t = 0s the switch is moved to position b. What is the time constant of the RL circuit obtained?
Submit Answer Tries 0/10
c. Find the current in this RL circuit when the time t is three-quarters of the time constant from part b.
Submit Answer Tries 0/10
d. At what time has the current decayed to 0.75% of its initial value?
Submit Answer Tries 0/10
Chapter 30 Solutions
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
Ch. 30 - Prob. 1CQCh. 30 - You want to insert a loop of copper wire between...Ch. 30 - A vertical, rectangular loop of copper wire is...Ch. 30 - Does the loop of wire in FIGURE Q30.4 have a...Ch. 30 - s5. The two loops of wire in FIGURE Q30.5 are...Ch. 30 - FIGURE Q30.6 shows a bar magnet being pushed...Ch. 30 - A bar magnet is pushed toward a loop of wire as...Ch. 30 - FIGURE Q30.8 shows a bar magnet. a coil of wire,...Ch. 30 - Prob. 9CQCh. 30 - An inductor with a 2.0 A current stores energy. At...
Ch. 30 - Prob. 11CQCh. 30 - Prob. 12CQCh. 30 - Rank in order, from largest to smallest, the three...Ch. 30 - For the circuit of FIGURE Q30.14: a. What is the...Ch. 30 - The earth’s magnetic field strength is 5.0105T ....Ch. 30 - A potential difference of 0.050 V is developed...Ch. 30 - A 10 -cm-long wire is pulled along a U-shaped...Ch. 30 - What is the magnetic flux through the loop shown...Ch. 30 - FIGURE EX30.5 shows a 10cm10cm square bent at a 90...Ch. 30 - Prob. 6EAPCh. 30 - Prob. 7EAPCh. 30 - FIGURE EX30.8 shows a 2.0 -cm-diameter solenoid...Ch. 30 - Prob. 9EAPCh. 30 - 10. A solenoid is wound as shown in FIGURE...Ch. 30 - 11. The metal equilateral triangle in FIGURE...Ch. 30 - The current in the solenoid of FIGURE EX3O.12 is...Ch. 30 - The loop in FIGURE EX30.13 is being pushed into...Ch. 30 - FIGURE EX30.14 shows a 10-cm-diameter loop in...Ch. 30 - Prob. 15EAPCh. 30 - 16. A -turn coil of wire cm in diameter is in a...Ch. 30 - A 5.0 -cm-diameter coil has 20 turns and a...Ch. 30 - FIGURE EX30.18 shows the current as a function of...Ch. 30 - The magnetic field in FIGURE EX30.19 is decreasing...Ch. 30 - The magnetic field inside a -cm-diameter solenoid...Ch. 30 - Scientists studying an anomalous magnetic field...Ch. 30 - Prob. 22EAPCh. 30 - Prob. 23EAPCh. 30 - Prob. 24EAPCh. 30 - Prob. 25EAPCh. 30 - Prob. 26EAPCh. 30 - How much energy is stored in a -cm-diameter,...Ch. 30 - MRI (magnetic resonance imaging) is a medical...Ch. 30 - Prob. 29EAPCh. 30 - Prob. 30EAPCh. 30 - Prob. 31EAPCh. 30 - Prob. 32EAPCh. 30 - Prob. 33EAPCh. 30 - Prob. 34EAPCh. 30 - At t=0 s, the current in the circuit in FIGURE...Ch. 30 - The switch in FIGURE EX3O.36 has been open for a...Ch. 30 - Prob. 37EAPCh. 30 - Prob. 38EAPCh. 30 - Prob. 39EAPCh. 30 - Prob. 40EAPCh. 30 - A 10cm10cm square loop lies in the xy-plane. The...Ch. 30 - A spherical balloon with a volume of L is in a mT...Ch. 30 - Prob. 43EAPCh. 30 - Prob. 44EAPCh. 30 - Prob. 45EAPCh. 30 - FIGURE P30.46 shows a 4.0-cm-diameter loop with...Ch. 30 - Prob. 47EAPCh. 30 - Prob. 48EAPCh. 30 - Prob. 49EAPCh. 30 - Prob. 50EAPCh. 30 - Prob. 51EAPCh. 30 - Prob. 52EAPCh. 30 - Prob. 53EAPCh. 30 - Prob. 54EAPCh. 30 - Prob. 55EAPCh. 30 - Your camping buddy has an idea for a light to go...Ch. 30 - 57. The -wide, zero-resistance slide wire shown...Ch. 30 - ]58. You’ve decided to make the magnetic...Ch. 30 - FIGURE P30.59 shows a U-shaped conducting rail...Ch. 30 - Prob. 60EAPCh. 30 - Prob. 61EAPCh. 30 - Prob. 62EAPCh. 30 - Equation 30.26 is an expression for the induced...Ch. 30 - Prob. 64EAPCh. 30 - One possible concern with MRI (see Exercise 28) is...Ch. 30 - FIGURE P30.66 shows the current through a 10mH...Ch. 30 - Prob. 67EAPCh. 30 - Prob. 68EAPCh. 30 - Prob. 69EAPCh. 30 - Prob. 70EAPCh. 30 - An LC circuit is built with a inductor and an...Ch. 30 - Prob. 72EAPCh. 30 - For your final exam in electronics, you’re asked...Ch. 30 - The inductor in FIGURE P30.74 is a -cm-long, -cm-...Ch. 30 - The capacitor in FIGURE P30.75 is initially...Ch. 30 - The switch in FIGURE P30.76 has been open for a...Ch. 30 - 77. The switch in FIGURE P30.77 has been open for...Ch. 30 - Prob. 78EAPCh. 30 - Prob. 79EAPCh. 30 - Prob. 80EAPCh. 30 - In recent years it has been possible to buy a 1.0F...Ch. 30 - Prob. 82EAPCh. 30 - Prob. 83EAPCh. 30 - Prob. 84EAPCh. 30 - A 2.0 -cm-diameter solenoid is wrapped with 1000...Ch. 30 - High-frequency signals are often transmitted along...
Knowledge Booster
Learn more about
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
- A doctor observes that when they apply a 2.0T B-field perpendicular to the flow of blood in a blood vessel, their multimeter displays a 40 mV voltage across the blood vessel. The vessel itself is cylindrical in shape and has a radius of 1.5 cm. a. Calculate how fast is the blood flowing through the vessel? b. What is the E-field induced across the walls of the vessel?arrow_forwardAt t=infinity, what is the current flowing through an inductor? What is the voltage across the inductor at t=0? At t=infinity, what is the voltage across the inductor?arrow_forwardThe circuit shown in the diagram has a switch which is turned on at time t = 0, and it is known that the capacitor C is charged with Q = ±2.0 μC on its plates. as shown. The capacitance is known to be C = 1.0 nF, and the inductance equals L = 10 μH. as you close the switch, what is the current in the circuit? Which function describes the current as a function of time? (there may be undetermined constants in your expression) What is the natural oscillation frequency for this circuit? What is the total energy stored in the circuit?arrow_forward
- The solenoid shown in the diagram has 5 loops per centimeter and a cross sectional area of 0.3 m². The resistor has the resistance of 2 Ohm. When the switch is closed, the current in the solenoid increases at the rate of 200 A/s. Find the current through the resistor. Rarrow_forwardbat i R= The circuit shown in the figure contains a resistor and a solenoid. A battery is connected by closing the switch in the figure and provides an EMF Vbat = 15 V. At a time t = 50 ms after the switch is closed the current in the circuit reaches a value of 1.0 A which corresponds to 25 % of its steady state value. What are the values of the resistance and inductance? Provide your answer to two significant figures. R 2 L = x² Harrow_forwardAn inductor of L = 7.75 H with negligible resistance is placed in series with a 8 = 12.1 V battery, a R= 3.00 2 resistor, and a switch. The switch is closed at time t = 0 seconds. Calculate the initial current at i = 0 seconds. I(t = 0 s) = A R Calculate the current as time approaches infinity. Imax A Calculate the current at a time of 2.07 s. I(t = 2.07 s) = A Determine how long it takes for the current to reach half of its maximum.arrow_forward
- Your RL circuit has a characteristic time constant of 21.5 ns, and a resistance of 5.40 MΩ. A. What is the inductance (in H) of the circuit? B. What resistance (in MΩ) should you use (instead of the 5.40 MΩ resistor) to obtain a 1.00 ns time constant, perhaps needed for quick response in an oscilloscope?arrow_forwardA 70 μF capacitor with a 13 μC charge is connected across a 18 mH inductor. What is the charge on the capacitor and what is the current through the inductor 0.55 ms after the circuit is connected?arrow_forwardThe circuit shown in the figure contains a resistor and a solenoid. A battery is connected by closing the switch in the figure and provides an EMF Vbat = 15 V. At a time t = 50 ms after the switch is closed the current in the circuit reaches a value of 1.0 A which corresponds to 25 % of its steady state value. What are the values of the resistance and inductance? State your answer to 2 s.f.arrow_forward
- A 9ohm resistor is connected to a solenoid and a power source of 10V. The solenoid has a radius of 15cm, 200 loops, and a length of 2cm. If we assume the circuit starts with no current, what is the stored energy in solenoid after 0.5 seconds?arrow_forwardlell L1 R1 R Lq 2. In this figure, assume arbitrary numbers for R1, R2, L1, and L2 including some number for the battery Ɛ. Find the rate of current in which inductor one (L1) is changing just after the switch is closed. Next, find the current in L1 after some time after the switch has been closed. lell wwwarrow_forwardIn the circuit shown in the Figure with 3.0 mH for the inductance and 6.0 uF for the capacitance, S1 has been closed for a long enough time so that the current reads a steady 3.50 A. Suddenly, S2 is closed and S1 is opened at the same instant. What is the maximum charge that the capacitor will receive? What is the current in the inductor at this time? At an instant when the charge on the capacitor is 0.1 mC, what is the current in the inductor? At an instant when the charge on the capacitor is 0.1 mC, what is the rate at which the current in the inductor is changing?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
What is Electromagnetic Induction? | Faraday's Laws and Lenz Law | iKen | iKen Edu | iKen App; Author: Iken Edu;https://www.youtube.com/watch?v=3HyORmBip-w;License: Standard YouTube License, CC-BY