College Physics
10th Edition
ISBN: 9781285737027
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Question
Chapter 18, Problem 42P
(a)
To determine
The current passing through coffee maker, toaster and waffle maker.
(b)
To determine
The total current delivered to the three appliances.
(c)
To determine
The total required current of 15 A exceeds the limit of the circuit breaker.
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Chapter 18 Solutions
College Physics
Ch. 18.1 - True or False: While discharging, the terminal...Ch. 18.1 - Why does a battery get warm while in use?Ch. 18.2 - In Figure 18.5, the current is measured with the...Ch. 18.2 - The circuit in Figure 18.5 consists of two...Ch. 18.3 - In Figure 18.8, the current is measured with the...Ch. 18.3 - When the switch is open in Figure 18.8, power Po...Ch. 18.3 - Suppose you have three identical lightbulbs, some...Ch. 18.3 - If the lightbulbs in Quick Quiz 18.7 are connected...Ch. 18.5 - The switch is closed in Figure 18.20. After a long...Ch. 18 - Choose the words that make each statement correct....
Ch. 18 - Given three lightbulbs and a battery, sketch as...Ch. 18 - Suppose the energy transferred to a dead battery...Ch. 18 - A short circuit is a circuit containing a path of...Ch. 18 - Electric current I enters a node with three...Ch. 18 - If electrical power is transmitted over long...Ch. 18 - The following statements are related to household...Ch. 18 - Two sets of Christmas lights are available. For...Ch. 18 - Why is it possible for a bird to sit on a...Ch. 18 - An uncharged series RC circuit is to be connected...Ch. 18 - Suppose a parachutist lands on a high-voltage wire...Ch. 18 - A ski resort consists of a few chairlifts and...Ch. 18 - Embodied in Kirchhoffs rules are two conservation...Ch. 18 - Why is it dangerous to turn on a light when you...Ch. 18 - A battery haring an emf of 9.00 V delivers 117 mA...Ch. 18 - Prob. 2PCh. 18 - A battery with an emf of 12.0 V has a terminal...Ch. 18 - A battery with a 0.100- internal resistance...Ch. 18 - Two resistors, R1 and R2 are connected in series....Ch. 18 - Three 9.0- resistors are connected in series with...Ch. 18 - (a) Find the equivalent resistance between points...Ch. 18 - Consider the combination of resistors shown in...Ch. 18 - Prob. 9PCh. 18 - Consider the circuit shown in Figure P18.10. (a)...Ch. 18 - Consider the circuit shown in Figure P18.11. Find...Ch. 18 - Four resistors are connected to a battery as shown...Ch. 18 - The resistance between terminals a and b in Figure...Ch. 18 - A battery with = 6.00 V and no internal...Ch. 18 - Find the current in the 12- resistor in Figure...Ch. 18 - (a) Is it possible to reduce the circuit shown in...Ch. 18 - (a) You need a 45- resistor, but the stockroom has...Ch. 18 - (a) Find the current in each resistor of Figure...Ch. 18 - Figure P18.19 shows a Wheatstone bridge, a circuit...Ch. 18 - For the circuit shown in Figure P18.20, calculate...Ch. 18 - Taking R = 1.00 k and = 250 V in Figure P18.21,...Ch. 18 - In the circuit of Figure P18.22, the current I1 is...Ch. 18 - In the circuit of Figure P18.23, determine (a) the...Ch. 18 - Four resistors are connected to a battery with a...Ch. 18 - Using Kirchhoffs rules (a) find the current in...Ch. 18 - Figure P18.26 shows a voltage divider, a circuit...Ch. 18 - (a) Can the circuit shown in Figure P18.27 be...Ch. 18 - A dead battery is charged by connecting it to the...Ch. 18 - (a) Can the circuit shown in Figure P18.29 be...Ch. 18 - For the circuit shown in Figure P18.30, use...Ch. 18 - Find the potential difference across each resistor...Ch. 18 - Show that = RC has units of time.Ch. 18 - Consider the series RC circuit shown in Figure...Ch. 18 - An uncharged capacitor and a resistor are...Ch. 18 - Consider a series RC circuit as in Figure P18.35...Ch. 18 - The RC charging circuit in a camera flash unit has...Ch. 18 - Figure P18.37 shows a simplified model of a...Ch. 18 - The capacitor in Figure P18.35 is uncharged for t ...Ch. 18 - What minimum number of 75-W light bulbs must be...Ch. 18 - A 1 150-W toaster and an 825-W microwave oven are...Ch. 18 - Prob. 41PCh. 18 - Prob. 42PCh. 18 - Assume a length of axon membrane of about 0.10 m...Ch. 18 - Consider the model of the axon as a capacitor from...Ch. 18 - Prob. 45PCh. 18 - How many different resistance values can be...Ch. 18 - (a) Calculate the potential difference between...Ch. 18 - For the circuit shown in Figure P18.48, the...Ch. 18 - Figure P18.49 shows separate series and parallel...Ch. 18 - Three 60.0-W, 120-V lightbulbs are connected...Ch. 18 - When two unknown resistors are connected in series...Ch. 18 - The circuit in Figure P18.52a consists of three...Ch. 18 - A circuit consists of three identical lamps, each...Ch. 18 - The resistance between points a and b in Figure...Ch. 18 - The circuit in Figure P18.55 has been connected...Ch. 18 - Prob. 56APCh. 18 - The student engineer of a campus radio station...Ch. 18 - The resistor R in Figure P18.58 dissipates 20 W of...Ch. 18 - A voltage V is applied to a series configuration...Ch. 18 - For the network in Figure P18.60, show that the...Ch. 18 - A battery with an internal resistance of 10.0 ...Ch. 18 - The circuit in Figure P18.62 contains two...Ch. 18 - An electric eel generates electric currents...Ch. 18 - In Figure P18.64, R1 = 0.100 , R2 = 1.00 , and R3...Ch. 18 - What are the expected readings of the ammeter and...Ch. 18 - Consider the two arrangements of batteries and...Ch. 18 - The given pair of capacitors in Figure P18.67 is...Ch. 18 - 2.00-nF capacitor with an initial charge of 5.10 C...
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- Point charges of 6.50 μC and -2.50 μC are placed 0.300 m apart. (Assume the negative charge is located to the right of the positive charge. Include the sign of the value in your answers.) (a) Where can a third charge be placed so that the net force on it is zero? 0.49 m to the right of the -2.50 μC charge (b) What if both charges are positive? 0.185 xm to the right of the 2.50 μC chargearrow_forwardc = ad Find the electric field at the location of q, in the figure below, given that q₁ = 9₁ = 9₁ = +4.60 nC, q=-1.00 nC, and the square is 20.0 cm on a side. (The +x axis is directed to the right.) magnitude direction N/C ° counterclockwise from the +x-axis 9a % 9 9barrow_forwardPlastic beads can often carry a small charge and therefore can generate electric fields. Three beads are oriented such that 92 is between q₁ and 93. The sum of the charge on 9₁ and 92 is 9₁ + 92 = −2.9 µС, and the net charge of the system of all three beads is zero. E field lines 93 92 What charge does each bead carry? 91 92 -1.45 What is the net charge of the system? What charges have to be equal? μC 2.9 ✓ What is the net charge of the system? What charges have to be equal? μC 93 2.9 μεarrow_forward
- A spider begins to spin a web by first hanging from a ceiling by his fine, silk fiber. He has a mass of 0.025 kg and a charge of 3.5 μC. A second spider with a charge of 4.2 μC rests in her own web exactly 2.1 m vertically below the first spider. (a) What is the magnitude of the electric field due to the charge on the second spider at the position of the first spider? 8.57e3 N/C (b) What is the tension in the silk fiber above the first spider? 0.275 How does the electric field relate to the force? How do you calculate the net force? Narrow_forwardPlastic beads can often carry a small charge and therefore can generate electric fields. Three beads are oriented such that 92 is between 91 system of all three beads is zero. E field lines 91 92 93 X What charge does each bead carry? 91 = 92 = ?2.9 0 μC × What is the net charge of the system? What charges have to be equal? μC 93 2.9 με and 93. The sum of the charge on 91 and 92 is 91 +92 = -2.9 μC, and the net charge of thearrow_forwardAn electron has an initial speed of 5.26 x 100 m/s in a uniform 5.73 x 105 N/C strength electric field. The field accelerates the electron in the direction opposite to its initial velocity. (a) What is the direction of the electric field? opposite direction to the electron's initial velocity same direction as the electron's initial velocity not enough information to decide × What is the direction of the force on the electron? How does it compare to the direction of the electric field, considering the sign of the electron's charge? (b) How far does the electron travel before coming to rest? 0.0781 × What kinematic equation is relevant here? How do you calculate the force due to the electric field? m (c) How long does it take the electron to come to rest? 5.27e8 What is the final velocity of the electron? s (d) What is the electron's speed when it returns to its starting point? 5.26e6 m/sarrow_forward
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