University Physics Volume 2
18th Edition
ISBN: 9781938168161
Author: OpenStax
Publisher: OpenStax
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Textbook Question
Chapter 14, Problem 14CQ
An inductor is connected across the terminals of a battery. Does the current stance of the battery? Does the time required for the current to reach its final value depend on this resistance?
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A 9.5-V battery, a 5.07-Ω resistor, and a 9.8-H inductor are connected in series. After the current in the circuit has reached its maximum value, calculate the following.
A 50H inductor and
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is 100volt. The time
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current to reach half
its final value is:
An inductor, battery, resistance, and ammeter and switch are connected in series. If the switch, initially open, is now
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O
zero
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battery voltage times inductance
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Chapter 14 Solutions
University Physics Volume 2
Ch. 14 - Check Your Understanding. A current...Ch. 14 - Check Your Understanding. Current flows through...Ch. 14 - Check Your Understanding. A changing current...Ch. 14 - Check Your Understanding (a) Calculate the...Ch. 14 - Check Your Understanding (a) What is the magnetic...Ch. 14 - Check Your Understanding How much energy is stored...Ch. 14 - Check Your Understanding Verify that RC and L/R...Ch. 14 - Check Your Understanding (a) If the current in the...Ch. 14 - Check Your Understanding For the circuit of in...Ch. 14 - Check Your Understanding The angular frequency of...
Ch. 14 - Check Your Understanding In an RLC circuit, L =...Ch. 14 - Show that N m /l and el(dl/dt), which are both...Ch. 14 - A 10-H inductor carries a current of 20 A....Ch. 14 - The ignition circuit of an automobile is powered...Ch. 14 - When the current through a large inductor is...Ch. 14 - Does self-inductance depend on the value of the...Ch. 14 - Would the self-inductance of a 1.0 m long, tightly...Ch. 14 - Discuss how you might determine the-inductance per...Ch. 14 - The self-inductance of a coil is zero if there is...Ch. 14 - How does the self- inductance per unit length near...Ch. 14 - Solve that I I 2 /2 has units of energy.Ch. 14 - Use Lenz’s law to explain why the initial current...Ch. 14 - When the current in the RL circuit of Figure...Ch. 14 - Does the time required for the current in an RL...Ch. 14 - An inductor is connected across the terminals of a...Ch. 14 - At what time is the voltage across the inductor of...Ch. 14 - In the simple RL circuit of Figure 14.12(b), can...Ch. 14 - If emf of the battery of Figure 14.12(b) is...Ch. 14 - A steady current flows through a circuit with a...Ch. 14 - Describe how the currents through R1and R2, shown...Ch. 14 - Discuss possible practical applications of RL...Ch. 14 - Do Kirchhoff’s rules apply to circuits that...Ch. 14 - Can a circuit e1eent have both capacitance and...Ch. 14 - In an LC circuit, what determines the frequency...Ch. 14 - When a wire is connected between the two ends of a...Ch. 14 - Describe what effect the resistance of the...Ch. 14 - Suppose you wanted to design an LC circuit with a...Ch. 14 - A radio receiver uses an RLC circuit to pick out...Ch. 14 - When the current in one coi1 changes at a rate of...Ch. 14 - An emf of 9.7 × 10-3 V is induced in a coil while...Ch. 14 - Two coils close to each other have a mutual...Ch. 14 - A coil of 40 turns is wrapped around a long...Ch. 14 - A 600-turn solenoid is 0.55 m long and 4.2 cm in...Ch. 14 - A toroidal coil has a mean radius of 16 cm and a...Ch. 14 - A solenoid of N1turns has length l1and radius R1,...Ch. 14 - An emf of 0.40 V is induced across a coil when the...Ch. 14 - The current shown in part (a) below is increasing,...Ch. 14 - What is the rate at which the current though a...Ch. 14 - When a camera uses a flash, a fully charged...Ch. 14 - A coil with a self-inductance of 2.0 H carries a...Ch. 14 - A solenoid 50 cm long is wound with 500 turns of...Ch. 14 - A coil with a self-inductance of 3.0 H carries a...Ch. 14 - The current I(t) through a 5.0-mH inductor varies...Ch. 14 - A long, cylindrical solenoid with 100 turns per...Ch. 14 - Suppose that a rectangular toroid has 2000...Ch. 14 - What is the self-inductance per meter of a coaxial...Ch. 14 - At the instant a current of 0.20 A is flowing...Ch. 14 - Suppose that a rectangular toroid has 2000...Ch. 14 - Solenoid A is tightly wound while solenoid B has...Ch. 14 - A 10-H inductor carries a current of 20 A. How...Ch. 14 - A coil with a self-inductance of 3.0 H and a...Ch. 14 - A current of 1.2 A is flowing in a coaxial cable...Ch. 14 - In Figure 14.12, =12V , L = 20 mH, and R=5.0....Ch. 14 - For the circuit shown below, =20V , L = 4.0 mH,...Ch. 14 - The current in the RL circuit shown here increases...Ch. 14 - How long after switch S1 is thrown does it take...Ch. 14 - Examine the circuit shown below in part (a)....Ch. 14 - The current in the RL circuit shown below reaches...Ch. 14 - Consider the circuit shown below. Find l1, l2and...Ch. 14 - For the circuit shown below, =50V , R1= 10 , and...Ch. 14 - For the circuit shown below, find the current...Ch. 14 - Show that for the circuit shown below, the initial...Ch. 14 - A 5000-pF capacitor is charged to 100 V and then...Ch. 14 - The self-inductance and capacitance of an LC...Ch. 14 - What is the self-inductance of an LC circuit that...Ch. 14 - In an oscillating LC circuit the maximum charge on...Ch. 14 - The self-inductance and capacitance of an...Ch. 14 - In an oscillating LC circuit, the maximum charge...Ch. 14 - In the circuit shown below, S1is opened and S2is...Ch. 14 - An LC circuit in an AM tuner (in a car stereo)...Ch. 14 - In an oscillating RLC circuit, R=5.0 ,. L=5.0mH ,...Ch. 14 - In an oscillating RLC circuit with L = 10 mH, C =...Ch. 14 - What resistance R must be connected in series with...Ch. 14 - Show that the self-inductance per unit length of...Ch. 14 - Two long, parallel wires cy equal currents in...Ch. 14 - A small, rectangular single loop of wire with...Ch. 14 - Suppose that a cylindrical solenoid is wrapped...Ch. 14 - A solenoid with 4 x 107turns/m has an iron core...Ch. 14 - A rectangular toroid with inner radius R1= 7.0cm,...Ch. 14 - The switch S of the circuit shown below is closed...Ch. 14 - In an oscillating RLC circuit, R = 7.0 L. = 10...Ch. 14 - A 25.0-H inductor has 100 A of current turned off...Ch. 14 - A coaxial cable has an inner conductor of radius...Ch. 14 - In a damped oscillating circuit the energy is...Ch. 14 - The switch in the circuit shown below is closed at...Ch. 14 - A square loop of side 2 cm is placed 1 cm from a...Ch. 14 - A rectangular copper ring, of mass 100 g and...
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- Before working on a power transmission line, linemen will touch the line with the back of the hand as a final check that the voltage is zero. Why the back of the hand?arrow_forwardA solenoid has a radius of 3.5 cm, 160 turns and a length of 1.2 m. Take the solenoid to have negligible (zero) resistance. The terminals of the solenoid are connected across a 15 Ω resistor at time zero and the circuit is given an initial current of 55 mA. a) How long will it take for the current to drop to 12mA? b) At time zero, just after the current in the circuit is initiated, what is the energy stored in the solenoid and what is the voltage across the solenoid?arrow_forwardTwo inductors of inductances 4H & 8H arranged in series and a current of 10A is passed through them. What is the energy stored in them?arrow_forward
- In an RLC circuit, the resistance R does NOT change with frequency. Why would VR change with frequency(consider other factors in the circuit).arrow_forwardThe voltage across an inductor is proportional to the inductor and the derivative of the current that flow through it. Is it True or False?arrow_forward8. A constant voltage of 5.00 V has been observed over a certain time interval across a 2.20 H inductor. The current through the inductor, measured as 2.00 A at the beginning of the time interval, was observed to increase at a constant rate to a value of 8.00 A at the end of the time interval. How long was this time interval? This is not and will not be gradedarrow_forward
- Why is the terminal voltage less than the emf?arrow_forwardThe voltage across a solenoid is shown in the figure, measured by an oscilloscope. What would be the voltage reading on a voltmeter if the same solenoid was measured by a multimeter, similar to what we used in our experiments. 40 -20 -40 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 time (ms) 40 V 14 mV 10 mv none of them 20 V 28 V 40 mV 28 mV 20 mv 30 mV 20 (Aw) A O Oarrow_forwardA 7.50 nF capacitor is charged to 12.0 V, then disconnectedfrom the power supply and connected in series through a coil. The periodof oscillation of the circuit is then measured to be 8.60 * 10^-5 s.Calculate:the total energy of the circuitarrow_forward
- A 7.50 nF capacitor is charged to 12.0 V, then disconnectedfrom the power supply and connected in series through a coil. The periodof oscillation of the circuit is then measured to be 8.60 * 10^-5 s.Calculate:the maximum charge on the capacitorarrow_forwardThe voltage across a solenoid is shown in the figure, measured by an oscilloscope. What would be the voltage reading on a voltmeter if the same solenoid was measured by a multimeter, similar to what we used in our experiments. 40 -20 -40 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 time (ms) 14 mV V (mV) 20arrow_forwardAt the moment t = 0, a 26.0 V battery is connected to a 5.00 mH coil and a 6.00 Ω resistor. (a) Immediately thereafter, how does the potential difference across the resistor compare to the emf across the coil? (Enter your answers in V.) resistor Vcoil V (b) Answer the same question about the circuit several seconds later. (Enter your answers in V.) resistor Vcoil V (c) Is there an instant at which these two voltages are equal in magnitude? YesNo (d) If so, when? Is there more than one such instant? (Enter all possible times in ms as a comma-separated list. If there are no such instants, enter NONE.) ms (e) After a 4.80 A current is established in the resistor and coil, the battery is suddenly replaced by a short circuit. Answer questions (a) and (b) again with reference to this new circuit. (Enter your answers in V.) immediately thereafter several seconds later resistorarrow_forward
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