Physics: Principles with Applications
7th Edition
ISBN: 9780321625922
Author: Douglas C. Giancoli
Publisher: Addison-Wesley
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Textbook Question
Chapter 19, Problem 12P
Eight identical bulbs are connected in series across a 120-V line, (a) Whatis the voltage across each bulb? (b)If the current is 0.45 A, what is the resistance of each bulb, and what is the power dissipated in each?
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QUESTION 6
a) What is the time constant for the circuit shown in the figure below if the value of ε = 12.0 V, R = 21.4 ohm, and C = 39.1 mF.?
b) Suppose that the switch is closed and the capacitor starts to charge. How much of the charge will be accumulated on each plate of the
capacitor after 3 s of charging?
Submit the value of the charge (in mC, with tho decimal places) as your answer.
When a pair of identical resistors (say 4 ohm each) are connected in SERIES to a 12 V car battery, CALCULATE for both resistors:
(a) voltage across each, (b) power dissipated in each, (c) current through each? Do any of your answers change if the resistors are different from each other.
How many 10OW lightbulbs can you use in a 200-V
circuit without tripping a 11-A circuit breaker? (The
bulbs are connected in parallel, which means that
the potential difference across each lightbulb is
200V. Also calculate the resistance of the 1o0w
lightbulb.
(a) No. of 100-W lightbulbs we can use without
tripping a 11-A circuit breaker=
(b) Resistance of 100W lightbulb in ohm =
Chapter 19 Solutions
Physics: Principles with Applications
Ch. 19 - Prob. 1OQCh. 19 - Prob. 1QCh. 19 - Prob. 2QCh. 19 - Prob. 3QCh. 19 - Prob. 4QCh. 19 - Prob. 5QCh. 19 - Prob. 6QCh. 19 - Prob. 7QCh. 19 - Prob. 8QCh. 19 - Prob. 9Q
Ch. 19 - Prob. 10QCh. 19 - Prob. 11QCh. 19 - Prob. 12QCh. 19 - Prob. 13QCh. 19 - Prob. 14QCh. 19 - Prob. 15QCh. 19 - Given the circuit shown in Fig. 19-38, use the...Ch. 19 - Prob. 17QCh. 19 - Prob. 18QCh. 19 - 19. What is the main difference between an analog...Ch. 19 - What would happen if you mistakenly used an...Ch. 19 - Prob. 21QCh. 19 - Prob. 22QCh. 19 - Prob. 23QCh. 19 - Prob. 1MCQCh. 19 - Prob. 2MCQCh. 19 - Prob. 3MCQCh. 19 - Prob. 4MCQCh. 19 - Prob. 5MCQCh. 19 - Prob. 6MCQCh. 19 - Prob. 7MCQCh. 19 - Prob. 8MCQCh. 19 - Prob. 9MCQCh. 19 - Prob. 10MCQCh. 19 - Prob. 11MCQCh. 19 - Prob. 12MCQCh. 19 - Prob. 13MCQCh. 19 - Prob. 14MCQCh. 19 - Prob. 15MCQCh. 19 - Calculate the terminal voltage for a battery with...Ch. 19 - Prob. 2PCh. 19 - What is the internal resistance of a 12.0-V car...Ch. 19 - A 650-O and an 1800-O resistor are connected in...Ch. 19 - Prob. 5PCh. 19 - Suppose that you have a 580-O, a 790-O, and a...Ch. 19 - Prob. 7PCh. 19 - Prob. 8PCh. 19 - Prob. 9PCh. 19 - Prob. 10PCh. 19 - Prob. 11PCh. 19 - Eight identical bulbs are connected in series...Ch. 19 - Prob. 13PCh. 19 - Prob. 14PCh. 19 - Prob. 15PCh. 19 - Determine (a) the equivalent resistance of the...Ch. 19 - Prob. 17PCh. 19 - (a) Determine the equivalent resistance of the...Ch. 19 - What is the net resistance of the circuit...Ch. 19 - Prob. 20PCh. 19 - Prob. 21PCh. 19 - Prob. 22PCh. 19 - Prob. 23PCh. 19 - Consider the network of resistors shown in Fig....Ch. 19 - Calculate the current in the circuit of Fig....Ch. 19 - Determine the terminal voltage of each battery in...Ch. 19 - For the circuit shown in Fig.19-55, find the...Ch. 19 - Determine the magnitudes and directions of the...Ch. 19 - (a) What is the potential difference between...Ch. 19 - Prob. 30PCh. 19 - 31. (II) Determine the magnitudes V1= 9.0 V R1, =...Ch. 19 - Prob. 32PCh. 19 - Prob. 33PCh. 19 - (a) Determine the currents l1,l2 and l3 in Fig....Ch. 19 - Prob. 35PCh. 19 - Prob. 36PCh. 19 - Prob. 37PCh. 19 - Prob. 38PCh. 19 - A 3.00-F and a 4.00-F capacitor are connected in...Ch. 19 - If 21.0 V is applied across the whole network of...Ch. 19 - The capacitance of a portion of a circuit is to be...Ch. 19 - An electric circuit was accidentally constructed...Ch. 19 - Consider three capacitors, of capacitance 3200...Ch. 19 - Determine the equivalent capacitance between...Ch. 19 - What is the ration of the voltage V1 across...Ch. 19 - A 0.50-F and a 1.4-F capacitor are connected in...Ch. 19 - A circuit contains a single 250-pF capacitor...Ch. 19 - Prob. 48PCh. 19 - Prob. 49PCh. 19 - Given three capacitors. C1= 2.0$ mUF, C2= 1.5 F,...Ch. 19 - Prob. 51PCh. 19 - Prob. 52PCh. 19 - Prob. 53PCh. 19 - In Fig. 19-69 (same as Fig. 19-20a ), the total...Ch. 19 - Prob. 55PCh. 19 - Prob. 56PCh. 19 - Prob. 57PCh. 19 - Two resistors and two uncharged capacitors are...Ch. 19 - Prob. 59PCh. 19 - Prob. 60PCh. 19 - Prob. 61PCh. 19 - A galvanometer has an internal resistance of 32 ...Ch. 19 - Prob. 63PCh. 19 - Prob. 64PCh. 19 - Prob. 65PCh. 19 - Prob. 66PCh. 19 - Prob. 67GPCh. 19 - Prob. 68GPCh. 19 - Prob. 69GPCh. 19 - Prob. 70GPCh. 19 - A heart pacemaker is designed to operate at 72...Ch. 19 - Prob. 72GPCh. 19 - Prob. 73GPCh. 19 - Prob. 74GPCh. 19 - Prob. 75GPCh. 19 - Prob. 76GPCh. 19 - Prob. 77GPCh. 19 - Prob. 78GPCh. 19 - Prob. 79GPCh. 19 - Prob. 80GPCh. 19 - Prob. 81GPCh. 19 - Prob. 82GPCh. 19 - Prob. 83GPCh. 19 - (a) What is the equivlaent resistance of the...Ch. 19 - Prob. 85GPCh. 19 - Prob. 86GPCh. 19 - Prob. 87GPCh. 19 - In Fig. 19-86, let V= 10.0 V and C1=C2=C3=25.4 F....Ch. 19 - 89. A 12.0-V battery, two resistors, and two...Ch. 19 - Prob. 90GPCh. 19 - Prob. 91GPCh. 19 - Prob. 92GPCh. 19 - Prob. 93GPCh. 19 - Prob. 94GPCh. 19 - The variable capacitance of an old radio tuner...Ch. 19 - Prob. 96GPCh. 19 - Prob. 97GP
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- Power P0 = I0 V0 is delivered to a resistor of resistance R0. If the resistance is doubled (Rnew = 2R0) while the voltage is adjusted such that the current is constant, what are the ratios (a) Pnew/P0 and (b) Vnew/V0? If, instead, the resistance is held constant while Pnew = 2P0, what are the ratios (c) Vnew/V0, and (d) Inew/I0?arrow_forwardThe power dissipated in a resistor is given by P = V2/R, which means power decreases if resistance increases. Yet this power is also given by P = I2R, which means power increases if resistance increases. Explain why there is no contradiction here.arrow_forwardA child's electronic toy is supplied by three 1.58-V alkaline cells having internal resistances of 0.0200 inseries with a 1.53-V carbon-zinc dry cell having a 0.100- internal resistance. The load resistance is 10.0 . (a) Draw a circuit diagram of the toy and itsbatteries, (b) What current flows? (c) How much power is supplied to the load? (d) What is the internal resistance of the dry cell if it goes bad, resulting in only 0.500 W being supplied to the load?arrow_forward
- When the current in the portion of the circuit shown in Figure P32.65 is 2.00 A anti increases at a rate of 0.500 A/s, the measured voltage is Vab = 9.00 V. When the current is 2.00 A and decreases at the rate of 0.500 A/s. the measured voltage is Vab = 5.00 V. Calculate the values of (a) I. and (b) Rarrow_forwardIntegrated Concepts A 12.0-V emf automobile battery has a terminal voltage of 16.0 V when being charged by a current of 10.0 A. (a) What is the battery’s internal resistance? (b) What power is dissipated inside the battery? (c) At what rate (in °C/min ) will its temperature increase if its mass is 20.0 kg and it has a specific heat of 0.300 kcal/kg. °C, assuming no heat escapes?arrow_forwardA child’s electronic toy is supplied by three 1.58-V alkaline cells having internal resistances of 0.0200 in series with a 1.53-V carbon-zinc dry cell having a 0.100- internal resistance. The load resistance is 10.0 . (a) Draw a circuit diagram of the toy and its batteries, (b) What current flows? (c) How much power is supplied to the load? (d) What is the internal resistance of the dry cell if it goes bad, resulting in only 0.500 W being supplied to the load?arrow_forward
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