(a)
The current through the each resistor.
(a)
Answer to Problem 15PQ
The current through the each resistor is
Explanation of Solution
Refer to Fig 29.15; in this series circuit, current is same for entire closed loop.
Write the expression for the current in the circuit as.
Here,
Write the expression for equivalent resistance of three resistors connected in series as.
Here,
Conclusion:
Substitute
Substitute
Thus, the current passing through each resistor is
(b)
Find the voltage across each resistor
(b)
Answer to Problem 15PQ
The voltage across each resistor is
Explanation of Solution
Write the expression for voltage across each resistance when resistors connected in series as.
Here,
Conclusion:
Substitute
Substitute
Substitute
Thus, the voltage across each resistor is
(c)
Find the power is consumed by each resistor
(c)
Answer to Problem 15PQ
The power consumed by each resistor is
Explanation of Solution
Write the expression for power consumed by resistor as
Here,
Write the expression for the power consumed by Emf device as.
Here,
Conclusion:
Substitute
Substitute
Substitute
Substitute
Thus, the power consumed by each resistor is
(d)
the current , voltage drop and power through each resistor when
(d)
Answer to Problem 15PQ
The current through each resistor when
Explanation of Solution
Conclusion:
Substitute
Substitute
Thus, the current passing through each resistor is
Substitute
Substitute
Substitute
Substitute
Thus, the power consumed by each resistor is
Substitute
Substitute
Substitute
Thus, the voltage drop across
Want to see more full solutions like this?
Chapter 29 Solutions
Student Solutions Manual For Katz's Physics For Scientists And Engineers: Foundations And Connections, Volume 1
- A Each resistor shown in Figure P29.36 has resistance R. An ideal emf device () is connected to points a and b via two leads (not shown in the figure). Find an expression for the current through the emf device. FIGURE P29.36arrow_forwardWhat is the equivalent resistance between points a and b of the six resistors shown in Figure P29.70? FIGURE P29.70arrow_forwardFigure P29.41 shows three resistors (R1 = 14.0 , R2 = 8.00 , and R3 = 10.0 ) and two batteries connected in a circuit. a. What is the current in each of the resistors? b. How much power is delivered to each of the resistors?arrow_forward
- Each resistor shown in Figure P29.36 has a resistance of 100.0 . An ideal emf device (120.0 V) is connected to points a and b via two leads (not shown in the figure). Find the current that flows through the emf device.arrow_forwardFigure P29.42 shows five resistors and two batteries connected in a circuit. What are the currents I1, I2, and I3? FIGURE P29.42arrow_forwardFigure P29.45 shows five resistors connected between terminals a and b. a. What is the equivalent resistance of this combination of resistors? b. What is the current through each resistor if a 24.0-V battery is connected across the terminals?arrow_forward
- A Figure P29.35 shows a combination of six resistors with identical resistance R. What is the equivalent resistance between points a and b?arrow_forwardFigure P29.77 shows a circuit with two batteries and three resistors. a. How much current flows through the 2.00- resistor? b. What is the potential difference between points a and b in the circuit?arrow_forwardThe circuit shown in Figure P28.78 is set up in the laboratory to measure an unknown capacitance C in series with a resistance R = 10.0 M powered by a battery whose emf is 6.19 V. The data given in the table are the measured voltages across the capacitor as a function of lime, where t = 0 represents the instant at which the switch is thrown to position b. (a) Construct a graph of In (/v) versus I and perform a linear least-squares fit to the data, (b) From the slope of your graph, obtain a value for the time constant of the circuit and a value for the capacitance. v(V) t(s) In (/v) 6.19 0 5.56 4.87 4.93 11.1 4.34 19.4 3.72 30.8 3.09 46.6 2.47 67.3 1.83 102.2arrow_forward
- Three resistors with resistances R1 = R/2 and R2 = R3 = R are connected as shown, and a potential difference of 225 V is applied across terminals a and b (Fig. P29.49). a. If the resistor R1 dissipates 75.0 W of power, what is the value of R? b. What is the total power supplied to the circuit by the emf? c. What is the potential difference across each of the three resistors?arrow_forwardEight real batteries, each with an emf of 5.00 V and an internal resistance of 0.200 , are connected end to end in a loop as in Figure P29.13. What is the terminal voltage across one of the batteries between points a and b?arrow_forwardThree 100- resistors are connected as shown in Figure P21.41 The maximum power that can safely be delivered to any one resistor is 25.0 W. (a) What is the maximum potential difference that can be applied to the terminals a and b? (b) For the voltage determined in part (a), what is the power delivered to each resistor? (c) What is the total power delivered to the combination of resistors?arrow_forward
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
- Physics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning