(a) Explanation Given Info: The switch S is closed. Sketch the given circuit as follows, Refer figure 2, after the switch S is closed the inductor act as a open circuited, therefore there is no current flow in the inductor and the voltage across the inductor is zero. Refer figure 3, the equivalent circuit shows the resistor ( R 1 ) and the resistor ( R 3 ) are connected in series. Formula to calculate the series resistance R s as follows, R s = R 1 + R 3 R 1 is the value of resistor 1, R 3 is the value of resistor 3. Substitute 100.0 Ω for R 1 and 50.0 Ω for R 3 to find R s , R s = ( 100.0 Ω ) + ( 50.0 Ω ) = 150.0 Ω Formula to calculate the total current in the circuit is, i T = V R s V is the supply voltage, R s is the series resistance. Substitute 150.0 Ω for R s and 50.0 V for V to find i T , i T = ( 50.0 V ) 150.0 Ω = 0.333 A Thus, the total current in the circuit is 0.333 A . Formula to calculate the voltage across the resistor V 1 is, V 1 = R 1 i T R 1 is the value of resistor 1, i T is the total current. Substitute 0.333 A for i T and 100.0 Ω for R 1 to find V 1 , V 1 = ( 100.0 Ω ) ( 0.333 A ) = 33.3 V Thus, the voltage across the resistor V 1 is 33.3 V . Refer figure 2, the inductor is open circuited, so the current through the ammeter reading A 2 is and the voltmeter reading V 3 is zero. A 2 = 0 V 3 = 0 The current flows through the resistor ( R 2 = 75.0 Ω ) and the resistor ( R 3 = 50.0 Ω ) is equal. i T = i 1 = i 3 = 0 (b) To determine The reading of each ammeter and voltmeter after the switch S has remain closed for a very long time.

University Physics with Modern Physics, Volume 1 (Chs. 1-20) and Mastering Physics with Pearson eText & ValuePack Access Card (14th Edition)

14th Edition

ISBN: 9780134209586

Author: Hugh D. Young

Publisher: PEARSON

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Chapter 30, Problem 30.58P

(a)

To determine

The reading of each ammeter and voltmeter after the switch S is closed.

(b)

To determine

The reading of each ammeter and voltmeter after the switch S has remain closed for a very long time.

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Chapter 30, Problem 30.57P

Chapter 30, Problem 30.59P

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University Physics with Modern Physics, Volume 1 (Chs. 1-20) and Mastering Physics with Pearson eText & ValuePack Access Card (14th Edition)

Ch. 30.1 - Consider the Tesla coil described in Example 30.1....Ch. 30.2 - Prob. 30.2TYU Ch. 30.3 - Prob. 30.3TYU Ch. 30.4 - Prob. 30.4TYU Ch. 30.5 - Prob. 30.5TYU Ch. 30.6 - An L-R-C series circuit includes a 2.0- resistor....Ch. 30 - In an electric trolley or bus system, the vehicles...Ch. 30 - From Eq. (30.5) 1 H = 1 Wb/A. and from Eqs. (30.4)...Ch. 30 - Prob. 30.3DQ Ch. 30 - Prob. 30.4DQ

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