Question 16 13) A bird lands on a bare copper wire carrying acurrent of 32A. The wire has a cross sectional area of0.13 cm². Find the difference in potential between thebird's feet, assuming they are separated by a distance of6 cm.resistivity of copper = 1.7 x 10-814) What is the minimum number of 65 Ohm resistorsthat must be connected in parallel to produce anequivalent resistance of 11 Ohms or less?15) A 12V battery is connected to three capacitors inseries. The capacitors have the following capacitance:4.5 UF, 12 uF, and 32 uF, Find the voltage acrossthe 32 uF capacitor.16) A particle enters a magnetic field in the positive xdirection. The Magnetic field points in the positive zdirection. The particle feels a force in the positive ydirection. Is the charge on the particle positive ornegative?17) A 0.32 uC particle moves with a speed of 16 m/sthrough a region where the magnetic field has strengthof 1 T. At what angle to the field is the particle movingif the force exerted on it is 4.8 x 10-6 Newtons?

Answered: Image /qna-images/answer/f4587d90-1a3f-48a9-8297-922cdf3729b6.jpg

16) A particle enters a magnetic field in the positive x direction. The Magnetic field points in the positive z direction. The particle feels a force in the positive y direction. Is the charge on the particle positive or negative?

16) A particle enters a magnetic field in the positive x direction. The Magnetic field points in the positive z direction. The particle feels a force in the positive y direction. Is the charge on the particle positive or negative?

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter27: Current And Resistance

Section: Chapter Questions

Problem 27.76AP

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Concept explainers

Magnetic Field Of Coaxial Cable

The word coaxial means same axis. So for a long straight cable to be coaxial, it must have concentric cylindrical shaped conductor around it. Coaxial cable (popularly called ‘coax’) has various applications ranging from current conductors to radiofrequency signal transmitters. This cable has lower emission losses and provides protection from electromagnetic interference which allows signals with less power to transmit over longer distances.For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable.The self-inductance of a coaxial cable is another important characteristic, because it influences the propagation of electrical signals in the cable.

Question

Question 16

13) A bird lands on a bare copper wire carrying a
current of 32A. The wire has a cross sectional area of
0.13 cm². Find the difference in potential between the
bird's feet, assuming they are separated by a distance of
6 cm.
resistivity of copper = 1.7 x 10-8
14) What is the minimum number of 65 Ohm resistors
that must be connected in parallel to produce an
equivalent resistance of 11 Ohms or less?
15) A 12V battery is connected to three capacitors in
series. The capacitors have the following capacitance:
4.5 UF, 12 uF, and 32 uF, Find the voltage across
the 32 uF capacitor.
16) A particle enters a magnetic field in the positive x
direction. The Magnetic field points in the positive z
direction. The particle feels a force in the positive y
direction. Is the charge on the particle positive or
negative?
17) A 0.32 uC particle moves with a speed of 16 m/s
through a region where the magnetic field has strength
of 1 T. At what angle to the field is the particle moving
if the force exerted on it is 4.8 x 10-6 Newtons?

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