Physics for Scientists and Engineers
6th Edition
ISBN: 9781429281843
Author: Tipler
Publisher: MAC HIGHER
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Question
Chapter 28, Problem 64P
(a)
To determine
The time at which switch is closed when the current in the circuit is
(b)
To determine
The time at which switch is closed when the current in the circuit of
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Students have asked these similar questions
The current in an RL circuit drops from 1.0 A to 10 mA in the first second following removal of the battery from the circuit. If L is 10 H, find the resistance R in the circuit.
The current in a single-loop circuit with one resistance R is 5.0A. When an additional resistance of 2.0 Ω is inserted in series with R, the current drops to 4.0 A. What is R?
Time t < 0, the circuit is in DC Steady State. The switch is opened instantly at time t=0. When t<0, I₂ = 7 A, and I₃ = 9 A.
R₁ = 5 Ω, R₂ = 4 Ω, and R₃ = 4 Ω. The solution for I₂ is I2 = I 0 e^ − R t / L. With several resistors in the circuit, the question is, what resistance do we use for R? Answer this question (in Ohms).
Chapter 28 Solutions
Physics for Scientists and Engineers
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- The 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 at t = 5.2 s, in Ampere?arrow_forwardProblem 11. An alternating voltage, v, has a periodic time of 0.01 s and a peak value of 40 V. When time t is zero, v= -20 V. Express the instantaneous voltage in the form v=Vm sin(wt + p).arrow_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
- a circuit having an inductance of L=2mH has a current that varies with time as I=t^3e^-t. find the time it takes for EMF to become zeroarrow_forwardA circuit has a constant EMF of 120 volts. Along it is a resistor of 600 Q and inductance of 4 H. At what time does the current reach 90% of its limiting value if the initial current is 0 A? Answer with text and/or attachments:arrow_forwardA DC source has Thevenin's voltage of 70 V and Thevenin's resistance of 3.5 ohms. If the maximum power is delivered to load, then the value of load current is RTh a. IL VTh R1 10 mA O 10 A O 2.5 A O 3.5 Aarrow_forward
- The current in a single-loop circuit with one resistance R is 5.0 A.When an additional resistance of 2.0 is inserted in series with R, the current drops to 4.0 A.What is R?arrow_forwardFor the circuit shown in Fig. Q2(b), assuming the switch has been opened for a very long time, when the switch opens at t = 0 s, compute the time constant, 7 of the circuit. 27 V S iL + VL - L → 158 mH 3.5 mA Fig. Q2(b) 6.6 ΚΩ www Rarrow_forwardIn the circuit shown in the figure, R1 = 20.0 Ω, R2 = 30.0 Ω, R3 = 40.0 Ω, L = 10.0 Hand ε = 100 V. What is the current i1 in units of ampere at t = 0.300 s after the switchis closed.arrow_forward
- A constant inductance of one henry and a variable resistance R are connected in series with a constant e.m.f. of E volts. If R = 1/(1+t) at time t seconds and if the current is initially zero, what value of E will make the current 24 amperes after 4 seconds?arrow_forwardA constant inductance of 1 henry and a variable resistance R are connected in series with a constant emf of E 1 ohms at time t seconds and if the current is initially zero, what value of E will make the 1+t volts. If R = current 24 amperes after 4 seconds?arrow_forwardAn RL circuit has an emf of 5 volts, a resistance of 50 ohms, an inductance of 1 henry, and no initial current. Find the current in the circuit at time t = 2 ms. Express your answer in mA and round-off to three (3) decimal places. O 5.916 mA O 5.619 mA O 9.516 mA O 6.915 mAarrow_forward
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