Explanation Given data: ε is 12 V . I series is 0.30 A . I parallel is 1.6 A . Formula used: Write the expression for emf ( ε ) . ε = I R eq (1) Here, I is the current, and R eq is the equivalent resistance. Condition for series connected resistors: Consider the two resistors are connected in series. The equivalent resistance of the two series connected resistors ( R eq ) . R eq = R 1 + R 2 Condition for parallel connected resistors: Consider the two resistors are connected in parallel. The equivalent resistance of the two parallel connected resistors ( R eq ) . R eq = R 1 R 2 R 1 + R 2 Explanation: Consider R 1 and R 2 are the two resistances in the circuit. Modify and rearrange equation (1) for series connected circuit. R 1 + R 2 = ε I series Substitute 12 V for ε and 0.30 A for I series , R 1 + R 2 = 12 V 0.30 A = 40 Ω Rearrange the equation. R 1 = 40 Ω − R 2 (2) Modify and rearrange equation (1) for parallel connected circuit. R 1 R 2 R 1 + R 2 = ε I parallel Substitute 12 V for ε , 40 Ω for R 1 + R 2 and 1.6 A for I parallel , R 1 R 2 R 1 + R 2 = 12 V 1

MODIFIED MASTERING COLLEGE PHYSICS 18WK.

4th Edition

ISBN: 9780136782216

Author: Knight

Publisher: PEARSON

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Chapter 23, Problem 17P

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The values of the two resistors.

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Chapter 23 Solutions

MODIFIED MASTERING COLLEGE PHYSICS 18WK.

Ch. 23 - Prob. 1CQ Ch. 23 - Prob. 2CQ Ch. 23 - Current Iin flows into three resistors connected...Ch. 23 - The circuit in Figure Q23.4 has two resistors,...Ch. 23 - The circuit in Figure Q23.5 has a battery and two...Ch. 23 - Prob. 6CQ Ch. 23 - Prob. 7CQ Ch. 23 - In the circuit shown in Figure Q23.6, bulbs A and...Ch. 23 - Figure Q23.7 shows two circuits. The two batteries...Ch. 23 - Figure Q23.8 shows two circuits. The two batteries...

Ch. 23 - a. In Figure Q23.9, what fraction of current I...Ch. 23 - Prob. 12CQ Ch. 23 - Prob. 13CQ Ch. 23 - Prob. 14CQ Ch. 23 - Prob. 15CQ Ch. 23 - Prob. 16CQ Ch. 23 - Prob. 17CQ Ch. 23 - Prob. 18CQ Ch. 23 - Prob. 19CQ Ch. 23 - Prob. 20CQ Ch. 23 - Prob. 21CQ Ch. 23 - Prob. 22CQ Ch. 23 - Prob. 23CQ Ch. 23 - Prob. 24CQ Ch. 23 - Prob. 25CQ Ch. 23 - Prob. 26CQ Ch. 23 - Prob. 27CQ Ch. 23 - Prob. 28CQ Ch. 23 - Prob. 29CQ Ch. 23 - A device to make an electrical measurement of skin...Ch. 23 - Consider the model of nerve conduction in...Ch. 23 - Adding a myelin sheath to an axon results in...Ch. 23 - Prob. 34MCQ Ch. 23 - Prob. 35MCQ Ch. 23 - Prob. 36MCQ Ch. 23 - A metal wire of resistance R is cut into two...Ch. 23 - Prob. 38MCQ Ch. 23 - Prob. 39MCQ Ch. 23 - If a cells membrane thickness doubles but the cell...Ch. 23 - If a cells diameter is reduced by 50% without...Ch. 23 - Prob. 42MCQ Ch. 23 - Draw a circuit diagram tor the circuit of Figure...Ch. 23 - Draw a circuit diagram for the circuit of Figure...Ch. 23 - Draw a circuit diagram for the circuit of Figure...Ch. 23 - In Figure P23.4, what is the current in the wire...Ch. 23 - Prob. 5P Ch. 23 - Prob. 6P Ch. 23 - a. What are the magnitude and direction of the...Ch. 23 - Prob. 8P Ch. 23 - The current in a circuit with only one battery is...Ch. 23 - What is the equivalent resistance of each group of...Ch. 23 - What is the equivalent resistance of each group of...Ch. 23 - Prob. 12P Ch. 23 - Prob. 13P Ch. 23 - You have a collection of 1.0 k resistors. How can...Ch. 23 - You have a collection of six 1.0 k resistors. What...Ch. 23 - You have six 1.0 k resistors. How can you connect...Ch. 23 - Prob. 17P Ch. 23 - Prob. 18P Ch. 23 - Prob. 19P Ch. 23 - Prob. 20P Ch. 23 - Prob. 21P Ch. 23 - Prob. 22P Ch. 23 - Prob. 23P Ch. 23 - Prob. 24P Ch. 23 - Prob. 25P Ch. 23 - Prob. 26P Ch. 23 - Prob. 27P Ch. 23 - Prob. 28P Ch. 23 - Prob. 29P Ch. 23 - Prob. 30P Ch. 23 - Prob. 31P Ch. 23 - Prob. 32P Ch. 23 - Prob. 33P Ch. 23 - Prob. 34P Ch. 23 - Prob. 35P Ch. 23 - A 6.0 F capacitor, a 10 F capacitor, and a 16 F...Ch. 23 - A 6.0 F capacitor, a 10 F capacitor, and a 16 F...Ch. 23 - You need a capacitance of 50 F, but you dont...Ch. 23 - You need a capacitance of 50 F, but you dont...Ch. 23 - Prob. 40P Ch. 23 - Prob. 41P Ch. 23 - Prob. 42P Ch. 23 - Prob. 43P Ch. 23 - Prob. 44P Ch. 23 - Prob. 45P Ch. 23 - Prob. 46P Ch. 23 - A 10F capacitor initially charged to 20C is...Ch. 23 - A capacitor charging circuit consists of a...Ch. 23 - Prob. 49P Ch. 23 - A 9.0-nm-thick cell membrane undergoes an action...Ch. 23 - A cell membrane has a resistance and a capacitance...Ch. 23 - Changing the thickness of the myelin sheath...Ch. 23 - A particular myelinated axon has nodes spaced 0.80...Ch. 23 - To measure signal propagation in a nerve in the...Ch. 23 - A myelinated axon conducts nerve impulses at a...Ch. 23 - Prob. 56GP Ch. 23 - Two 75 W (120 V) lightbulbs are wired in series,...Ch. 23 - Prob. 58GP Ch. 23 - A real battery is not just an emf. We can If model...Ch. 23 - Prob. 60GP Ch. 23 - Batteries are recharged by connecting them to a...Ch. 23 - Prob. 63GP Ch. 23 - Prob. 64GP Ch. 23 - Prob. 65GP Ch. 23 - Prob. 66GP Ch. 23 - What is the ratio P parallel/P series of the total...Ch. 23 - You have a device that needs a voltage reference...Ch. 23 - Prob. 69GP Ch. 23 - A circuit youre building needs an ammeter that...Ch. 23 - A circuit youre building needs a voltmeter that...Ch. 23 - For the circuit shown in Figure P23.68, find the...Ch. 23 - You have three 12 F capacitors. Draw diagrams...Ch. 23 - Initially, the switch in Figure P23.70 is in...Ch. 23 - Prob. 75GP Ch. 23 - Prob. 76GP Ch. 23 - Prob. 77GP Ch. 23 - Prob. 78GP Ch. 23 - Prob. 79GP Ch. 23 - Prob. 80GP Ch. 23 - Intermittent windshield wipers use a variable...Ch. 23 - Prob. 82GP Ch. 23 - In Example 23.14 we estimated the capacitance of...Ch. 23 - The giant axon of a squid is 0.5 mm in diameter,...Ch. 23 - A cell has a 7.0-nm-thick membrane with a total...Ch. 23 - The Defibrillator A defibrillator is designed to...Ch. 23 - The Defibrillator A defibrillator is designed to...Ch. 23 - The Defibrillator A defibrillator is designed to...Ch. 23 - A defibrillator is designed to pass a large...Ch. 23 - The voltage produced by a single nerve or muscle...Ch. 23 - The voltage produced by a single nerve or muscle...Ch. 23 - The voltage produced by a single nerve or muscle...Ch. 23 - The voltage produced by a single nerve or muscle...

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