COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 21, Problem 11QAP
To determine
The reason for when the switch S is opened in the RL circuit, a spark jumps between the switch contacts
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When a switch on a circuits is closed, the light turns on. Explain why this happens.
Initially, for the circuit shown, the switch S is open and the capacitor is uncharged.The switch S is closed at time t = 0. In the following figure, when the time t is equal to 8.0 s, the charge on the capacitor, in μC, is closest to:
A) 1200
B) 940
C) 1400
D) 1600
E) 1900
14 - chapter28-question21
In the circuit shown, the capacitor is initially uncharged. At time t = 0,
switch S is closed. If t denotes the time constant, what is the approximate
60
current (in A) through the 3 0 resistor when t t/10? Take I(t) = loeRC
and e = 2.73.
6 uF
10 V
Option1 Option2 Option3 Option4 Option5
0.38
0.50
0.75
|1.5
Option1
Option3
Option5
O Option2
O Option4
Chapter 21 Solutions
COLLEGE PHYSICS
Ch. 21 - Prob. 1QAPCh. 21 - Prob. 2QAPCh. 21 - Prob. 3QAPCh. 21 - Prob. 4QAPCh. 21 - Prob. 5QAPCh. 21 - Prob. 6QAPCh. 21 - Prob. 7QAPCh. 21 - Prob. 8QAPCh. 21 - Prob. 9QAPCh. 21 - Prob. 10QAP
Ch. 21 - Prob. 11QAPCh. 21 - Prob. 12QAPCh. 21 - Prob. 13QAPCh. 21 - Prob. 14QAPCh. 21 - Prob. 15QAPCh. 21 - Prob. 16QAPCh. 21 - Prob. 17QAPCh. 21 - Prob. 18QAPCh. 21 - Prob. 19QAPCh. 21 - Prob. 20QAPCh. 21 - Prob. 21QAPCh. 21 - Prob. 22QAPCh. 21 - Prob. 23QAPCh. 21 - Prob. 24QAPCh. 21 - Prob. 25QAPCh. 21 - Prob. 26QAPCh. 21 - Prob. 27QAPCh. 21 - Prob. 28QAPCh. 21 - Prob. 29QAPCh. 21 - Prob. 30QAPCh. 21 - Prob. 31QAPCh. 21 - Prob. 32QAPCh. 21 - Prob. 33QAPCh. 21 - Prob. 34QAPCh. 21 - Prob. 35QAPCh. 21 - Prob. 36QAPCh. 21 - Prob. 37QAPCh. 21 - Prob. 38QAPCh. 21 - Prob. 39QAPCh. 21 - Prob. 40QAPCh. 21 - Prob. 41QAPCh. 21 - Prob. 42QAPCh. 21 - Prob. 43QAPCh. 21 - Prob. 44QAPCh. 21 - Prob. 45QAPCh. 21 - Prob. 46QAPCh. 21 - Prob. 47QAPCh. 21 - Prob. 48QAPCh. 21 - Prob. 49QAPCh. 21 - Prob. 50QAPCh. 21 - Prob. 51QAPCh. 21 - Prob. 52QAPCh. 21 - Prob. 53QAPCh. 21 - Prob. 54QAPCh. 21 - Prob. 55QAPCh. 21 - Prob. 56QAPCh. 21 - Prob. 57QAPCh. 21 - Prob. 58QAPCh. 21 - Prob. 59QAPCh. 21 - Prob. 60QAPCh. 21 - Prob. 61QAPCh. 21 - Prob. 62QAPCh. 21 - Prob. 63QAPCh. 21 - Prob. 64QAPCh. 21 - Prob. 65QAPCh. 21 - Prob. 66QAPCh. 21 - Prob. 67QAPCh. 21 - Prob. 68QAPCh. 21 - Prob. 69QAPCh. 21 - Prob. 70QAPCh. 21 - Prob. 71QAPCh. 21 - Prob. 72QAPCh. 21 - Prob. 73QAPCh. 21 - Prob. 74QAPCh. 21 - Prob. 75QAPCh. 21 - Prob. 76QAPCh. 21 - Prob. 77QAPCh. 21 - Prob. 78QAPCh. 21 - Prob. 79QAPCh. 21 - Prob. 80QAPCh. 21 - Prob. 81QAPCh. 21 - Prob. 82QAPCh. 21 - Prob. 83QAPCh. 21 - Prob. 84QAPCh. 21 - Prob. 85QAP
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- The switch S in Figure 20.27 is closed at t = 0 and the current at a reference time tref 0 is Iref. If the circuit is changed as, described below and the switch is again dosed at t = 0, determine whether the current I at the same time would be greater than, less than, or equal to the original value of Iref. Indicate your answers wilt G. L. or E, respectively. (a) Both the battery voltage and the resistance R are doubled. (b) The inductance L b doubled. (c) The battery voltage . the resistance R, and the inductance L are each doubled. Figure 20.27 A series RL circuit. As the current increases toward its maximum value, the inductor produces an emf that opposes the increasing current.arrow_forwardConsider the circuit in Figure 21.29 and assume the batter has no internal resistance. (i) Just after the switch is closed, what is the current in the battery? (a) 0 (b) /2R (c) 2/R (d) /R (e) impossible to determine (ii) After a very long time, what is the current in the battery? Choose from the same choices.arrow_forwardApply the loop rule to Loop afedcba in die preceding problem.arrow_forward
- For the circuit shown below, =20V , L = 4.0 mH, and R = 5.0 . After steady state is reached with S1 closed and S2 open, S2 is closed and immediately thereafter (at t = 0) S1 is opened. Determine (a) the current through L at t = 0, (b) the current through L at r = 4.0 x 10-4 s, and (c) the voltages across L and R at t = 4.0 x 10-4 s.arrow_forwardApply the loop rule to loop afedcba in Figure 21.47.arrow_forwardThe switch is closed in Figure 18.20. After a long time compared with the time constant, of the circuit, what will the current be in the 2- resistor? (a) 4 A (b) 3 A (c) 2 A (d) 1 A (c) More information is needed. Figure 18.20 (Quick Quiz 18.9)arrow_forward
- COMPLETE THE TABLE OF VALUES POR THIS CIRCUIT & RI= 202 RI Ry TOTAC tov R2 = DO2 V. 2व = 20arrow_forward14 - chapter28-question21 In the circuit shown, the capacitor is initially uncharged. At time t = 0, switch S is closed. If t denotes the time constant, what is the approximate current (in A) through the 30 resistor when t = t/10? Take I(t) = loeRC and e = 2.73. 6 µF Option1 Option2 Option3 Option4 OptionS 30 10 V 0.38 0.50 0.75 1 1.5 Option1 Option3 Option5 O Option2 Option4arrow_forwardAssume that the capacitor has been charged by the battery. What do you think will happen to the voltage across the capacitor when the two-position switch is flipped so that the battery is removed from the circuit? Explainarrow_forward
- 15. Please consider the following circuit (Yay! Last question of this set!). RA RB Rc ŽRD 12 V, RA = 5 2, RB = 3 2, Rc =1 2, and Rp = 3 Q. The switch is open. E = a) What is the battery current? (include units) b) What is the difference in electric potential between points a and b? (include units) c) The switch is closed. What is the battery current? (include units) d) The switch is closed. What is the difference in electric potential between points a and b? (include units)arrow_forwardInitially, for circuit shown, switch S is open & capacitor voltage = 80 V. The switch S is closed at t=0. In figure, capacitor voltage when t=40.0s, is closest to A)100V B)66V C)75V D)83V E)91Varrow_forward15. Please consider the following circuit (Yay! Last question of this set!). RA RB a Rc 12 V, RA = 5 S2, RB = 3 2, Rc =1 Q, and Rp = 3 2. The switch is open. E = a) What is the battery current? (include units) b) What is the difference in electric potential between points a and b? - (include units) c) The switch is closed. What is the battery current? (include units) d) The switch is closed. What is the difference in electric potential between points a and b? - (include units)arrow_forward
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