(a) According to the right-hand rule for currents in a magnetic field, since the current is to the south, theto make the magnetic force vector point upward.magnetic field must be to the eastB ==NWAIL(b) With I to the south and B pointing east, the force on the wire is FB = ILB sin 0, which must counterbalancethe weight mg of the wire. So we have the following.(7)(77)FBILF. - IL XBB=1.25mgILE=9.80 m/s²)A.4710² cm/m10³ g/kgg/cm(cm) (10230.3XYour response differs from the correct answer by more than 10%. Double check your calculations. TWe have found the field to just balance the force of gravity. Any increase of this magnetic field, no matter howsmall, would lift the wire.

We have, I = 1.25 A and m = 0.47 g/cm

(a) According to the right-hand rule for currents in a magnetic field, since the current is to the south, the to make the magnetic force vector point upward. magnetic field must be to the east ♥ W- B = IL F₁ = IL XB B N (b) With I to the south and B pointing east, the force on the wire is FB = ILB sin 0, which must counterbalance the weight mg of the wire. So we have the following. 1.25 E FB mg 22=m² = (²) (7) IL IL (9.80 m/s²) A) ( А .47 102 cm/m 103 g/kg /cm) (10²3 0.3 Your response differs from the correct answer by more than 10%. Double check your calculations. T

(a) According to the right-hand rule for currents in a magnetic field, since the current is to the south, the to make the magnetic force vector point upward. magnetic field must be to the east ♥ W- B = IL F₁ = IL XB B N (b) With I to the south and B pointing east, the force on the wire is FB = ILB sin 0, which must counterbalance the weight mg of the wire. So we have the following. 1.25 E FB mg 22=m² = (²) (7) IL IL (9.80 m/s²) A) ( А .47 102 cm/m 103 g/kg /cm) (10²3 0.3 Your response differs from the correct answer by more than 10%. Double check your calculations. T

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

100%

(a) According to the right-hand rule for currents in a magnetic field, since the current is to the south, the
to make the magnetic force vector point upward.
magnetic field must be to the east
B =
=
N
W
A
IL
(b) With I to the south and B pointing east, the force on the wire is FB = ILB sin 0, which must counterbalance
the weight mg of the wire. So we have the following.
(7)(77)
FB
IL
F. - IL XB
B
=
1.25
mg
IL
E
=
9.80 m/s²)
A
.47
10² cm/m
10³ g/kg
g/cm
(cm) (1023
0.3
X
Your response differs from the correct answer by more than 10%. Double check your calculations. T
We have found the field to just balance the force of gravity. Any increase of this magnetic field, no matter how
small, would lift the wire.

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