University Physics Volume 2
18th Edition
ISBN: 9781938168161
Author: OpenStax
Publisher: OpenStax
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Textbook Question
Chapter 10, Problem 2CQ
A battery with an internal resistance of r and an emf of 10.00 V is connected to a load resistor R = r. As the
battery ages, die internal resistance triples. How much is the current through the load resistor reduced?
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Chapter 10 Solutions
University Physics Volume 2
Ch. 10 - Check Your Understanding If you place a wire...Ch. 10 - Check Your Understanding Some strings of miniature...Ch. 10 - Check Your Understanding Consider the same...Ch. 10 - Check Your Understanding How would you use a river...Ch. 10 - Check Your Understanding Consider the electrical...Ch. 10 - Check Your Understanding In considering the...Ch. 10 - Check Your Understanding When using Kirchhoff’s...Ch. 10 - Check Your Understanding Digital meters are able...Ch. 10 - What effect will the internal resistance of a...Ch. 10 - A battery with an internal resistance of r and an...
Ch. 10 - Show that the power dissipated by the load...Ch. 10 - A voltage occurs across an open switch. What is...Ch. 10 - The severity of a shock depends on die magnitude...Ch. 10 - Suppose you are doing a physics lab that asks you...Ch. 10 - Some light bulbs have three power settings (not...Ch. 10 - Can all of die currents going into the junction...Ch. 10 - Consider the circuit shown below. Does the...Ch. 10 - Do batteries in a circuit always supply power to a...Ch. 10 - What are the advantages and disadvantages of...Ch. 10 - Semi-truck or trucks use four large 12-V...Ch. 10 - What would happen if you placed a voltmeter in...Ch. 10 - What is die basic operation of an ohmmeter as it...Ch. 10 - Why should you not connect an ammeter directly...Ch. 10 - A battery, switch, capacitor, and lamp are...Ch. 10 - When making an ECG measurement, it is important to...Ch. 10 - Why isn’t a short circuit necessarily a shock...Ch. 10 - We are often advised to not flick electric...Ch. 10 - A car battery with a 12-V emf and an internal...Ch. 10 - The label on a battery-powered radio recommends...Ch. 10 - An automobile starter motor has an equivalent...Ch. 10 - (a) What is the internal resistance of a voltage...Ch. 10 - A person with body resistance between his hands of...Ch. 10 - A 12.0-V emf automobile battery has a terminal...Ch. 10 - (a) What is the resistance of a 1.00102 , a 2.50k...Ch. 10 - What are the largest and smallest resistances yon...Ch. 10 - An 1800-W toaster, a 1400-W speaker, and a 75-W...Ch. 10 - Your car’s 30.0-W headlight and 2.40-kW starter...Ch. 10 - (a) Given a 48.0-V battery and 24.0- and 96.0- ...Ch. 10 - Referring to the example combining series and...Ch. 10 - Referring to Figure 10.16, (a) Calculate P3and...Ch. 10 - Refer to Figure 10.17 and the discussion of lights...Ch. 10 - Show that if two resistors R1 and R2 are combined...Ch. 10 - Consider the circuit shown below. The terminal...Ch. 10 - Consider the circuit shown below, (a) Find the...Ch. 10 - Consider the circuits shown below, (a) What is the...Ch. 10 - Consider the circuit shown below. Find V1,I2, and...Ch. 10 - Consider the circuit shown below. Find V1, V2, and...Ch. 10 - Consider the circuit shown below. Find I1, I2,and...Ch. 10 - Consider the circuit shown below, (a)...Ch. 10 - Consider the circuit shown below. Write the three...Ch. 10 - Consider the circuit shown below. Write equations...Ch. 10 - Consider the circuit shown in the preceding...Ch. 10 - A child's electronic toy is supplied by three...Ch. 10 - Apply the junction rule to Junction b shown below....Ch. 10 - Apply the loop rule to Loop afedcba in die...Ch. 10 - Suppose you measure the terminal voltage of a...Ch. 10 - The timing device in an automobile's intermittent...Ch. 10 - A heart pacemaker fires 72 times a minute, each...Ch. 10 - The duration of a photographic flash is related to...Ch. 10 - A 2.00- and a 7.50F capacitor can be connected in...Ch. 10 - A 500 resistor, an uncharged 1.50F capacitor,and a...Ch. 10 - A heart defibrillator being used on a patient has...Ch. 10 - An ECG monitor must have an KC time constant...Ch. 10 - Using the exact exponential treatment, determine...Ch. 10 - If you wish to take a picture of a bullet...Ch. 10 - (a) How much power is dissipated in a short...Ch. 10 - What voltage is involved in a 1.44-kW short...Ch. 10 - Find the current through a person and identify the...Ch. 10 - While taking a bath, a person touches the metal...Ch. 10 - A man foolishly tries to fish a burning piece of...Ch. 10 - (a) During surgery, a current as small as 20.0A...Ch. 10 - (a) What is the resistance of a 220-V ac short...Ch. 10 - A heart defibrillator passes 10.0 A through a...Ch. 10 - A short circuit in a 120-V appliance cord has...Ch. 10 - A circuit contains a D cell battery, a switch, a...Ch. 10 - A circuit contains a D-cell battery, a switch, a...Ch. 10 - Consider the circuit below. The battery has an emf...Ch. 10 - A homemade capacitor is constructed of 2 sheets of...Ch. 10 - A student makes a homemade resistor from a...Ch. 10 - The rather simple circuit shown below is known as...Ch. 10 - Three 300- resistors areconnect in series with...Ch. 10 - Consider a circuit that consists of a real battery...Ch. 10 - Consider the circuit shown below. What is the...Ch. 10 - Consider a circuit consisting of a battery with an...Ch. 10 - Consider the circuit shown below. The terminal...Ch. 10 - Consider the circuit shown below. (a) What is the...Ch. 10 - Consider the circuit shown below. (a)Determine the...Ch. 10 - Two resistors, one having a resistance of 145 ,...Ch. 10 - Two resistors, one having a resistance of 900k are...Ch. 10 - Apply the junction rule at point G shown below.Ch. 10 - Apply the loop rule to Loop akledcba in the...Ch. 10 - Find the currants flowing in the circuit in the...Ch. 10 - Consider the circuit shown below, (a) Find the...Ch. 10 - A flashing lamp in a Christmas earring is based on...Ch. 10 - A 160F capacitor charged to 450 V is...Ch. 10 - Some camera flashes use flash tubes that requite a...Ch. 10 - Consider the circuit shown below. Each battery has...Ch. 10 - Analog meters use a galvanometer, which...Ch. 10 - Analog meters use a galvanometer, which...Ch. 10 - Consider the circuit shown below. Find I1, V1, I2,...Ch. 10 - Consider the circuit below.(a) What is the RC time...Ch. 10 - Consider the circuit below, (a) What is the...Ch. 10 - Consider the infinitely long chain of resistors...Ch. 10 - Consider the circuit below. The capacitor has a...Ch. 10 - A 120-V immersion heater consists of a coil of...Ch. 10 - Find the resistance that must be placed in series...Ch. 10 - Find the resistance that must be placed in...
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