7th Edition

ISBN: 9780321733627

Author: Douglas C. Giancoli

Publisher: PEARSON

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One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.

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Textbook Question

Chapter 17, Problem 2P

How much work does the electric field do in moving a proton from a point at a potential of +125 V to a point at -45 V? Express your answer both in joules and electronvolts.

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Chapter 17, Problem 1P

Chapter 17, Problem 3P

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4.) The diagram shows the electric field lines of a positively charged conducting sphere of radius R and charge Q. A B Points A and B are located on the same field line. A proton is placed at A and released from rest. The magnitude of the work done by the electric field in moving the proton from A to B is 1.7×10-16 J. Point A is at a distance of 5.0×10-2m from the centre of the sphere. Point B is at a distance of 1.0×10-1 m from the centre of the sphere. (a) Explain why the electric potential decreases from A to B. [2] (b) Draw, on the axes, the variation of electric potential V with distance r from the centre of the sphere. R [2] (c(i)) Calculate the electric potential difference between points A and B. [1] (c(ii)) Determine the charge Q of the sphere. [2] (d) The concept of potential is also used in the context of gravitational fields. Suggest why scientists developed a common terminology to describe different types of fields. [1]

3.) The graph shows how current I varies with potential difference V across a component X. 904 80- 70- 60- 50- I/MA 40- 30- 20- 10- 0+ 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 VIV Component X and a cell of negligible internal resistance are placed in a circuit. A variable resistor R is connected in series with component X. The ammeter reads 20mA. 4.0V 4.0V Component X and the cell are now placed in a potential divider circuit. (a) Outline why component X is considered non-ohmic. [1] (b(i)) Determine the resistance of the variable resistor. [3] (b(ii)) Calculate the power dissipated in the circuit. [1] (c(i)) State the range of current that the ammeter can measure as the slider S of the potential divider is moved from Q to P. [1] (c(ii)) Describe, by reference to your answer for (c)(i), the advantage of the potential divider arrangement over the arrangement in (b).

1.) Two long parallel current-carrying wires P and Q are separated by 0.10 m. The current in wire P is 5.0 A. The magnetic force on a length of 0.50 m of wire P due to the current in wire Q is 2.0 × 10-s N. (a) State and explain the magnitude of the force on a length of 0.50 m of wire Q due to the current in P. [2] (b) Calculate the current in wire Q. [2] (c) Another current-carrying wire R is placed parallel to wires P and Q and halfway between them as shown. wire P wire R wire Q 0.05 m 0.05 m The net magnetic force on wire Q is now zero. (c.i) State the direction of the current in R, relative to the current in P.[1] (c.ii) Deduce the current in R. [2]

Chapter 17 Solutions

Physics

Ch. 17 - Prob. 1OQ Ch. 17 - Prob. 1Q Ch. 17 - If a negative charge is initially at rest in an...Ch. 17 - State clearly the difference (a) between electric...Ch. 17 - An electron is accelerated from rest by a...Ch. 17 - Is there a point along the line joining two equal...Ch. 17 - Prob. 6Q Ch. 17 - Prob. 7Q Ch. 17 - Can two equipotential lines cross? Explain Ch. 17 - Prob. 9Q

Ch. 17 - When a battery is connected to a capacitor, why do...Ch. 17 - Prob. 11Q Ch. 17 - The parallel plates of an isolated capacitor carry...Ch. 17 - Prob. 13Q Ch. 17 - Prob. 14Q Ch. 17 - Prob. 15Q Ch. 17 - Prob. 16Q Ch. 17 - Prob. 17Q Ch. 17 - Prob. 18Q Ch. 17 - Prob. 1MCQ Ch. 17 - Two identical positive charges are placed near...Ch. 17 - Four identical point charges are arranged at the...Ch. 17 - Prob. 4MCQ Ch. 17 - Prob. 5MCQ Ch. 17 - Prob. 6MCQ Ch. 17 - Prob. 7MCQ Ch. 17 - Prob. 8MCQ Ch. 17 - Prob. 9MCQ Ch. 17 - Prob. 10MCQ Ch. 17 - Prob. 11MCQ Ch. 17 - How much work does the electric field do in moving...Ch. 17 - How much work does the electric field do in moving...Ch. 17 - What potential difference is needed to stop an...Ch. 17 - How much kinetic energy will an electron gain (in...Ch. 17 - An electron acquires 6.4510-16 J of kinetic energy...Ch. 17 - How strong is the electric field between two...Ch. 17 - An electric field of 525 V/m is desired between...Ch. 17 - The electric field between two parallel plates...Ch. 17 - What potential difference is needed to give a...Ch. 17 - Two parallel plates, connected to a 45-V power...Ch. 17 - The work done by an external force to move a -6.50...Ch. 17 - What is the speed of an electron with kinetic...Ch. 17 - Prob. 13P Ch. 17 - Prob. 14P Ch. 17 - An electric field greater than about 3 x 106 V/m...Ch. 17 - 16. (II) An electron starting from rest acquires...Ch. 17 - Prob. 17P Ch. 17 - Prob. 18P Ch. 17 - Prob. 19P Ch. 17 - Prob. 20P Ch. 17 - (a) What is the electric potential 2.51015m away...Ch. 17 - Prob. 22P Ch. 17 - Prob. 23P Ch. 17 - Prob. 24P Ch. 17 - Prob. 25P Ch. 17 - How much work must be done to bring three...Ch. 17 - Prob. 27P Ch. 17 - Prob. 28P Ch. 17 - Prob. 29P Ch. 17 - Prob. 30P Ch. 17 - Prob. 31P Ch. 17 - Prob. 32P Ch. 17 - Calculate the electric potential due to a dipole...Ch. 17 - The dipole moment, considered as a vector, points...Ch. 17 - Prob. 35P Ch. 17 - Prob. 36P Ch. 17 - Prob. 37P Ch. 17 - Prob. 38P Ch. 17 - The charge on a capacitor increases by 15 C when...Ch. 17 - Prob. 40P Ch. 17 - If a capacitor has opposite 4.2 µC charges on the...Ch. 17 - Prob. 42P Ch. 17 - Prob. 43P Ch. 17 - Prob. 44P Ch. 17 - Prob. 45P Ch. 17 - Prob. 46P Ch. 17 - Prob. 47P Ch. 17 - What is the capacitance of a pair of circular...Ch. 17 - Prob. 49P Ch. 17 - Prob. 50P Ch. 17 - Prob. 51P Ch. 17 - Prob. 52P Ch. 17 - Prob. 53P Ch. 17 - Prob. 54P Ch. 17 - A homemade capacitor is assembled by placing two...Ch. 17 - Prob. 56P Ch. 17 - Prob. 57P Ch. 17 - Prob. 58P Ch. 17 - Prob. 59P Ch. 17 - Prob. 60P Ch. 17 - Write the binary number 1010101010101010 as a...Ch. 17 - Prob. 62P Ch. 17 - Prob. 63P Ch. 17 - Prob. 64P Ch. 17 - Prob. 65P Ch. 17 - Prob. 66P Ch. 17 - Prob. 67P Ch. 17 - Prob. 68GP Ch. 17 - Prob. 69GP Ch. 17 - Prob. 70GP Ch. 17 - Prob. 71GP Ch. 17 - Prob. 72GP Ch. 17 - Prob. 73GP Ch. 17 - Dry air will break down if theelectric field...Ch. 17 - Prob. 75GP Ch. 17 - Prob. 76GP Ch. 17 - Prob. 77GP Ch. 17 - Prob. 78GP Ch. 17 - Prob. 79GP Ch. 17 - Prob. 80GP Ch. 17 - Prob. 81GP Ch. 17 - Prob. 82GP Ch. 17 - Prob. 83GP Ch. 17 - Prob. 84GP Ch. 17 - Prob. 85GP Ch. 17 - Prob. 86GP Ch. 17 - Prob. 87GP Ch. 17 - Prob. 88GP Ch. 17 - Prob. 89GP Ch. 17 - Prob. 90GP Ch. 17 - Prob. 91GP Ch. 17 - Prob. 92GP Ch. 17 - Prob. 93GP Ch. 17 - In the dynamic random access memory (DRAM)of a...Ch. 17 - Prob. 95GP Ch. 17 - Prob. 96GP

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