answer 20 and 21Which formula must be used for this problem? 21.A long, straight wire allows 3.50 A through it. What is the magnitude of the magnetic field 25.0 cm from the wire? Express the answer in microTesla (pT). Write magnitude only, unit is already given.OA.N2RВOB.FB =IlHolB =2arOD.FB =qvsineActivate Win-Go to Settings to 20.A solenoid 150 cm long with 1550 turns has a central magnetic field of 1.50 mT. Find the current through the coil.Which formula must be used for this problem?А.B =2arО в.HolN-2RB =В —FB =IlO D.FВ 3B =qvsin0

Q 20) As for this problem, we have the following information. Number of turn = N = 1550 Magnetic…

21.A long, straight wire allows 3.50 A through it. What is the magnitude of the magnetic field 25.0 cm from the wire? Express the answer in microTesla (pT). Write magnitude only, unit is already given. A.

21.A long, straight wire allows 3.50 A through it. What is the magnitude of the magnetic field 25.0 cm from the wire? Express the answer in microTesla (pT). Write magnitude only, unit is already given. A.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter12: Sources Of Magnetic Fields

Section: Chapter Questions

Problem 49P: A solenoid is wound with 2000 turns pet meter. When the cuiient is 5.2 A, what is the magnetic field...

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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

answer 20 and 21

Which formula must be used for this problem?

21.A long, straight wire allows 3.50 A through it. What is the magnitude of the magnetic field 25.0 cm from the wire? Express the answer in microTesla (pT). Write magnitude only, unit is already given.
OA.
N
2R
В
OB.
F
B =
Il
Hol
B =
2ar
OD.
F
B =
qvsine
Activate Win-
Go to Settings to

20.A solenoid 150 cm long with 1550 turns has a central magnetic field of 1.50 mT. Find the current through the coil.
Which formula must be used for this problem?
А.
B =
2ar
О в.
Hol
N-
2R
B =
В —
F
B =
Il
O D.
F
В 3
B =
qvsin0

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