EBK PHYSICS
5th Edition
ISBN: 8220103026918
Author: Walker
Publisher: PEARSON
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Question
Chapter 23, Problem 53PCE
To determine
The time to take for the current in the RL circuit to reach the half of its initial value.
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Students have asked these similar questions
The figure shows an LR circuit with L = 0.15 H, R = 25 Ω, and Vo = 36 V. The switch is initially open. Eight milliseconds (t = 8 ms) after the switch is closed, what is the current in the circuit and the potential difference between points a and b, Vab ?
The battery terminal voltage in the figure below is E = 8.30 V and the current I reaches half its maximum value of 5.00 A
at t = 0.200 s after the switch is closed.
HINT
S
+
E
S
Apply the expression for the current in an RL circuit.
V
R
(a) Calculate the time constant 7 (in s).
V
ele
Click the hint button again to remove this hint.
(b) What is the potential difference (in V) across the inductor at t = 0.200 s?
(c) What is the potential difference (in V) across the inductor in the instant after the switch is closed at t = 0?
d
k
k
wwwm-
S
AV
The circuit in figure consists of two identical parallel metal plates connected by
identical metal springs to a 100 V battery.
The surface area of one plate is 1778 m². With the switch open, the plates are
uncharged, and separated by a distance
d = 5 mm. When the switch is closed, the distance between the plates decreases
by a factor of half. What is the spring constant, in Newton/meter, for each spring?
E, = 9 x 10-12 C² /Nm²
Chapter 23 Solutions
EBK PHYSICS
Ch. 23.1 - Which of the following situations results in an...Ch. 23.2 - What is the angle in the definition of magnetic...Ch. 23.3 - In system 1 the magnetic flux through a coil with...Ch. 23.4 - A metal ring moves to the right from a field-free...Ch. 23.5 - Suppose the speed of the rod in Example 23-8 is...Ch. 23.6 - Consider the electric generator shown in Figure...Ch. 23.7 - Prob. 7EYUCh. 23.8 - Consider the circuit shown in Figure 23-25. (a) Is...Ch. 23.9 - Is more energy stored in an inductor by doubling...Ch. 23.10 - If a transformer doubled both the voltage and the...
Ch. 23 - Explain the difference between a magnetic field...Ch. 23 - A metal ring with a break in its perimeter is...Ch. 23 - Many equal-arm balances have a small metal plate...Ch. 23 - Figure 23-29 shows a vertical iron rod with a wire...Ch. 23 - A metal rod of resistance R can slide without...Ch. 23 - Recently, NASA tested a power generation system...Ch. 23 - Explain what happens when the angular speed of the...Ch. 23 - A 0 085-T magnetic field passes through a circular...Ch. 23 - A uniform magnetic field of 0.0250 T points...Ch. 23 - A magnetic field is oriented at an angle of 67 to...Ch. 23 - MRI Solenoid The magnetic field produced by an MRI...Ch. 23 - Find the magnitude of the magnetic flux through...Ch. 23 - At a certain location, the Earths magnetic field...Ch. 23 - A solenoid with 385 turns per meter and a diameter...Ch. 23 - A single-turn square loop of side L is centered on...Ch. 23 - A bar magnet is inside a closed cubical box...Ch. 23 - A 0.65-T magnetic field is perpendicular to a...Ch. 23 - Prob. 11PCECh. 23 - Figure 23-33 shows the magnetic flux through a...Ch. 23 - One type of antenna for receiving AM radio signals...Ch. 23 - A wire loop is placed in a magnetic field that is...Ch. 23 - Figure 23-35 shows four different situations in...Ch. 23 - Predict/Calculate The magnetic flux through a...Ch. 23 - Prob. 17PCECh. 23 - A single conducting loop of wire has an area of...Ch. 23 - The area of a 120-turn coil oriented with its...Ch. 23 - An emf is induced in a conducting loop of wire...Ch. 23 - A magnetic field increases from 0 to 0.55 T in 16...Ch. 23 - Predict/Explain A metal ring is dropped into a...Ch. 23 - Predict/Explain A metal ring is dropped into a...Ch. 23 - Predict/Explain Figure 23-37 shows two metal disks...Ch. 23 - Predict/Explain (a) As the solid metal disk in...Ch. 23 - A bar magnet with its north pole pointing downward...Ch. 23 - A Wire Loop and a Magnet A loop of wire is dropped...Ch. 23 - Suppose we change the situation shown in Figure...Ch. 23 - Figure 23-39 shows a current-carrying wire and a...Ch. 23 - Consider the physical system shown in Figure...Ch. 23 - Prob. 31PCECh. 23 - Prob. 32PCECh. 23 - Prob. 33PCECh. 23 - A conducting rod slides on two wires in a region...Ch. 23 - A metal rod 0.95 m long moves with a speed of 2.4...Ch. 23 - Airplane emf A Boeing KC-135A airplane has a...Ch. 23 - Predict/Calculate Figure 23-42 shows a...Ch. 23 - Referring to part (a) of Problem 37, (a) find the...Ch. 23 - (a) Find the current that flows in the circuit...Ch. 23 - Suppose the mechanical power delivered to the rod...Ch. 23 - Prob. 41PCECh. 23 - A rectangular coil 25 cm by 45 cm has 150 turns....Ch. 23 - A 1 6-m wire is wound into a coil with a radius of...Ch. 23 - Shake Flashlight A shake flashlight uses the...Ch. 23 - Predict/Calculate A circular coil with a diameter...Ch. 23 - A generator is designed to produce a maximum emf...Ch. 23 - Prob. 47PCECh. 23 - Prob. 48PCECh. 23 - Prob. 49PCECh. 23 - Prob. 50PCECh. 23 - Prob. 51PCECh. 23 - Prob. 52PCECh. 23 - Prob. 53PCECh. 23 - A simple RL circuit includes a 0.125-H inductor....Ch. 23 - Prob. 55PCECh. 23 - Prob. 56PCECh. 23 - Prob. 57PCECh. 23 - Prob. 58PCECh. 23 - Prob. 59PCECh. 23 - Prob. 60PCECh. 23 - Prob. 61PCECh. 23 - Alcator Fusion Experiment In the Alcator fusion...Ch. 23 - Superconductor Energy Storage An engineer proposes...Ch. 23 - Prob. 64PCECh. 23 - Prob. 65PCECh. 23 - Prob. 66PCECh. 23 - Transformer 1 has a primary voltage Vp and a...Ch. 23 - The electric motor in a toy train requires a...Ch. 23 - Predict/Calculate A disk drive plugged into a...Ch. 23 - A transformer with a turns ratio...Ch. 23 - A neon sign that requires a voltage of 11,000 V is...Ch. 23 - A step-down transformer produces a voltage of 6.0...Ch. 23 - A step-up transformer has 30 turns on the primary...Ch. 23 - CE Predict/Explain An airplane flies level to the...Ch. 23 - CE You hold a circular loop of wire at the north...Ch. 23 - Prob. 76GPCh. 23 - Interstellar Magnetic Field The Voyager I...Ch. 23 - Prob. 78GPCh. 23 - BIO Electrognathography Computerized jaw tracking,...Ch. 23 - A rectangular loop of wire 24 cm by 72 cm is bent...Ch. 23 - Consider a rectangular loop of wire 6.8 cm by 9.2...Ch. 23 - Predict/Calculate A car with a vertical radio...Ch. 23 - The rectangular coils in a 355-tum generator are...Ch. 23 - A cubical box 22 cm on a side is placed in a...Ch. 23 - BIO MRI Scanner An MRI scanner is based on a...Ch. 23 - BIO Transcranial Magnetic Stimulation Transcranial...Ch. 23 - A magnetic field with the time dependence shown in...Ch. 23 - Prob. 88GPCh. 23 - Prob. 89GPCh. 23 - Prob. 90GPCh. 23 - BIO Blowfly Maneuvers Suppose the fly described in...Ch. 23 - Prob. 92GPCh. 23 - Predict/Calculate A single-turn rectangular loop...Ch. 23 - Prob. 94GPCh. 23 - Prob. 95GPCh. 23 - Loop Detectors on Roadways Smart traffic lights...Ch. 23 - A car drives onto a loop detector and increases...Ch. 23 - A truck drives onto a loop detector and increases...Ch. 23 - Loop Detectors on Roadways Smart traffic lights...Ch. 23 - Referring to Conceptual Example 23-6 Suppose the...Ch. 23 - Referring to Conceptual Example 23-6 Suppose the...Ch. 23 - Referring to Example 23-8 (a) What external force...Ch. 23 - Predict/Calculate Referring to Example 23-8...
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- The I vs t graph shown below is for an LR circuit with a battery. 1(A) 3. 2 1. 9 18 27 36 45 54 63 72 81 90 t(s) Determine the time constant of the LR circuit. TH If L9 H, determine R. R = Ω MYarrow_forwardThree resistors R_1= 3.0 Q, R_2 = 6.0 Q and R_3 = 9.0 Q are to be combined in a DC circuit. Which do not yield a correct equivalent resistance? * R1 R2 R3 R2 b a b R3 O RT = 18.0 Q O RT = 0.61 Q R2 R3 R1 a b a b R3 R1 R_T = 6.6 Q R_T = 2.5 0arrow_forwardThe capacitor in the circuit shown below is initially uncharged. The switch is closed at t = 0 s. ΔVbattery = 60 V, C = 2.0 F, and R = 3.0 Ω. What is the current in the circuit immediately after the switch is closed, in Ampere?arrow_forward
- The I vs t graph shown below is for an LR circuit without a battery. I (A) 14/ 10.5 7. 3.5 1.5 3. 4.5 6. 7.5 t(s) Determine the time constant of the LR circuit. T = If L = 10 H, determine R. R = er resistors from highest to lowarrow_forwardIn the circuit shown in the figure, Rị = 20.0 N, R2 = 30.0 N, R3 = 40.0 N, L = 15.0 H %3D and e = 100 V. What is the current i in units of ampere at t = 0.700 s after the switch is closed. R1 R3 R2 000arrow_forwardIn an RLC circuit, the resistance R does NOT change with frequency. Why would VR change with frequency(consider other factors in the circuit).arrow_forward
- The I vs t graph shown below is for an LR circuit without a battery. 1 (A) 10+ 7.5 5. 2.5 5 10 15 20 25 t(s) Determine the time constant of the LR circuit. If L = 6 H, determine R. R =arrow_forwardAn initially uncharged capacitor is connected as shown. If the switch is closed at t0, the time it takes the capacitor to reach BO% of its final voltage is T. f the time constant of the circuit is t, determine T/r. R ww O16 22 5.0 3.0 1.9arrow_forwardThree resistors R_1 = 3.0 Q, R_2 = 6.0 Q and R_3 = 9.0 Q are to be combined in a DC circuit. Which do not yield a correct equivalent resistance? * R2 R1 a b R, R2 R3 R3 R_T = 6.6 0 R_T = 18.0 Q R1 R2 R3 R2 a b a R3 R1 R_T = 0.61 Q R_T = 2.5 Qarrow_forward
- d k k S AV The circuit in figure consists of two identical parallel metal plates connected by identical metal springs to a 100 V battery. The surface area of one plate is 1778 m². With the switch open, the plates are uncharged, and separated by a distance d = 2 mm. When the switch is closed, the distance between the plates decreases by a factor of half. What is the spring constant, in Newton/meter, for each spring? Eo = 9x 10-12 C²/N m² a) 160000 b) 20000 c) 10240 d) 2500 e) 1280arrow_forwardFor the circuit in the figure, at t = 0 the switch S is closed with the capacitor uncharged. If C = 55 µF, ɛ = 80V, and R = 4 kQ, what is the charge (in mC) on the capacitor when the current in the circuit is | = 6 mA? %3D S C: R Select one: O A. 3.08 12 B. 5.12 C. 5.72 OD. 3.60 OE. OE. 1.93 +arrow_forwardd k k S AV The circuit in figure consists of two identical parallel metal plates connected by identical metal springs to a 100 V battery. The surface area of one plate is 1778 m². With the switch open, the plates are uncharged, and separated by a distance d = 5 mm. When the switch is closed, the distance between the plates decreases by a factor of half. What is the spring constant, in Newton/meter, for each spring? Eo = 9 x 10-12 C² /N m² a) 160000 b) 20000 c) 10240 d) 2500 e) 1280arrow_forward
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