Example 3: A positively charged particle of mass m = 0.0004 g and charge q = 53 μC is moving horizontallytowards the wire carrying current I at the instant shown in the figure. The speed of the particle is v= 3900 m/s.(a) What is the direction of the current to keep the charge floating at this instant? (b) What is the current? Herer = 0.3 m. Hint: Gravity is not negligible in this problem. You must consider the weight of the particle when youcalculate magnetic force. Follow the steps below.Z(out)XrISteps:1) Magnitude the magnetic forceN; direction2) Magnitude the magnetic field B calculated from the magnetic forceat the location of the charge.T; RHR#1 direction3) Calculate the current from the magnetic field generated by a long straight wire.Amp; RHR # 2: direction of I

Given: Mass of the particle,m=4×10-4 g=4×10-7 kg magnitude of charge, q=53×10-6 C speed of the…

r Steps: 1) Magnitude the magnetic force N; direction 2) Magnitude the magnetic field B calculated from the magnetic force at the location of the charge. T; RHR#1 direction culate the current from the magnetic field generated by a long straight wire. Amp; RHR # 2: direction of I

r Steps: 1) Magnitude the magnetic force N; direction 2) Magnitude the magnetic field B calculated from the magnetic force at the location of the charge. T; RHR#1 direction culate the current from the magnetic field generated by a long straight wire. Amp; RHR # 2: direction of I

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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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

Example 3: A positively charged particle of mass m = 0.0004 g and charge q = 53 μC is moving horizontally
towards the wire carrying current I at the instant shown in the figure. The speed of the particle is v= 3900 m/s.
(a) What is the direction of the current to keep the charge floating at this instant? (b) What is the current? Here
r = 0.3 m. Hint: Gravity is not negligible in this problem. You must consider the weight of the particle when you
calculate magnetic force. Follow the steps below.
Z
(out)
X
r
I
Steps:
1) Magnitude the magnetic force
N; direction
2) Magnitude the magnetic field B calculated from the magnetic force
at the location of the charge.
T; RHR#1 direction
3) Calculate the current from the magnetic field generated by a long straight wire.
Amp; RHR # 2: direction of I

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