Delmar's Standard Textbook of Electricity (MindTap Course List)
6th Edition
ISBN: 9781285852706
Author: Stephen L. Herman
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 8, Problem 1PA
A circuit contains a 1000-Ω and a 300-Ω resistor connected in series with each other. The total circuit resistance must be reduced to a value of 1150 Ω. Using standard resistance values of 5% resistors discussed in Unit 5, explain how to change the present resistance value to the value desired.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Three wire-wound resistors have the following values: 30 Ohms, 80 Ohms, and 100 Ohms. Each resistor has a voltage rating of 100-V. If these three resistors are connected in series , can they be connected to a 240-V circuit without damage to the resistors? Explain your reasoning.
The total current drawn by a circuit consisting ofthree resistors connected in parallel is 12 A. Thevoltage drop across the first resistor is 12 V, thevalue of the second resistor is 3 ohms, and the power dissipationof the third resistor is 24 W. What are the resistances of the first and third resistors?
LO: 1, 2, 4,5,6: Figure shows the resistors from the previous two examples wired in a differentway—a combination of series and parallel. We can consider R1 to be the resistance of wiresleading to R2 and R3. (a) Find the total resistance. (b) What is the IR drop in R1? (c) Find thecurrent I2 through R2. (d) What power is dissipated by R2?
Chapter 8 Solutions
Delmar's Standard Textbook of Electricity (MindTap Course List)
Ch. 8 - Referto Figure 8-2. Replace the values shown with...Ch. 8 - 2. Refer to Figure 8-5. Replace the values shown...Ch. 8 - 3. Refer to the circuit shown in Figure 8-2....Ch. 8 - Refer to the circuit shown in Figure 6-22. The...Ch. 8 - Refer to Figure 8-21. Assume that the resistors...Ch. 8 - A circuit contains a 1000- and a 300- resistor...Ch. 8 - Two resistors are connected in series. One...Ch. 8 - A single-phase electric motor is connected to a...Ch. 8 - The hot water for the heating system for a small...Ch. 8 - Find the unknown values in the circuit if the...
Ch. 8 - Refer to the circuit shown in Figure 8-21 to solve...Ch. 8 - 3. Find the unknown values in the circuit if the...Ch. 8 - Refer to the circuit shown in Figure 8-25 to solve...Ch. 8 - 5. Find the unknown values in the circuit if the...Ch. 8 - Find the unknown values in the circuit if the...Ch. 8 - Refer to the circuit shown in Figure 8-26 to solve...Ch. 8 - ET E1 E2 E3 E41.248V IT I1 I2 I3 I4 RT R1 R2 R3 R4...Ch. 8 - Find the missing values for the circuit shown in...Ch. 8 - Find the missing values for the circuit shown in...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.Similar questions
- A circuit 10 V applied across a 10 ohm resistance R1. How much is the current in the circuit? How much resistance R2 must be added in series with R1 to reduce the current to one half? Show the schematic diagram of the circuit with R1 and R2arrow_forwardYou have a circuit that has 4 resistors and a 24 volt batteryLet the resistors have resistances of R1 = 4Ω, R2 = 6Ω, R3 = 8Ω, R4 = 10Ω.Answer the following questions using Kirchoff ’s rules:(a) What is the current through R3 in a circuit where you have the battery, then thefirst two resistors (R1, R2) hooked up in series, followed by the second two resistors(R3, R4) hooked up in parallel, before reconnecting back to the battery.(Show your circuit and what you choose for the loop(s) and junction(s) as part ofyour solution).(b) What is the current through R1 if you switch R1 with R3 in your original circuit?(Show your circuit and what you choose for the loop(s) and junction(s) as part ofyour solution).(c) What is the voltage drop across R4 in part (a)?(d) What is the voltage drop across R2 in part (b)?arrow_forwardA circuit consists of three resistors rated 3-0, 4-0 and 5-0 connected in parallel. If the circuit is connected to a battery which has an internal resistance of 0.5-a, what would be the current through the 4- resistor? V=12v.arrow_forward
- Calculate the total resistance for the series-parallel circuit shown(image attached) Hello, hope you're doing good. Could you show me step by step, please? Thank you! I'm still confused on which formula to use when there's multiple resistors. Do I just add all the resistors? I get so lost once it's a series parallel. Thank you again!arrow_forwardFor the given resistor combination circuit, determine (a) )the equivalent resistance (show simplification of circuits), (b) the current in the circuit assuming a 30V source(neglecting internal resistance) is connected at terminal a-b, (c) the potential drop across each resistor, and (d) the current across each resistor.arrow_forwardWhen n resistances each of value r are connected in parallel, then resultant resistance is x. When these n resistances are connected in series, total resistance isarrow_forward
- a. Calculate the voltages across each resistor in the circuit shown and record all results in Table below under the Calculated row. Note that Vsource is 5 V. b. Compute for the sum -Vsource+V330+V1k around loop 1, V470+V2.2k-V1k around loop 2, and -Vsource+V330+V470+V2.2k around loop 3 and record the result under the Calculated row.arrow_forwardA shunt resistor and a 50 mV, 1 mA d’Arsonval movement are used to build a 5 A ammeter. A resistance of 20 mΩ is placed across the terminals of the ammeter. What is the new full-scale range of the ammeter, in amperes?arrow_forwardSolve for R equivalent or Total Resistance of the following circuit: (please draw also, thank you!)arrow_forward
- If the total resistance of a series circuit of 3 resistors is 100 Ohms. Where the R1 = R2 and R3 = 60 Ohms, determine the two unknown resistors values. (R1 and R2)arrow_forwardTwo resistors A and B are connected in series with a 220-V DC source. a voltmeter with an internal resistance of 10k Ohms is connected across resistor A, the instrument reads 100V and when connected across resistor B, it reads 80V. Find the value of the two resistances in series. please show complete solution.arrow_forwardFor the following circuit: Calculate the Thévenin equivalent between B and A by the test source method and draw the resulting circuit. Draw the Thévenin equivalent if all resistors are In this case, how much will the current through a resistor connected between A and B be worth? Assume that R1 = R2 = R, R3 = R-ΔR and R4 = R+ΔR. How much are t h e Thévenin voltage and resistance worth? Is the Thévenin voltage linear with respect to ΔR?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Delmar's Standard Textbook Of ElectricityElectrical EngineeringISBN:9781337900348Author:Stephen L. HermanPublisher:Cengage Learning
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Cengage Learning
Current Divider Rule; Author: Neso Academy;https://www.youtube.com/watch?v=hRU1mKWUehY;License: Standard YouTube License, CC-BY