21.A solenoid 150 cm long with 1550 turns has acentral magnetic field of 1.50 mT. Find the currentthrough the coil.Which formula must be used for this problem?O A.B = =MI2лrB = NB =B =OB.C.D.NHI2RFqvsinoFIl 19.A long, straight wire allows 3.50 A through it. Whatis the magnitude of the magnetic field 25.0 cm fromthe wire? Express the answer in microTesla (µT). Writemagnitude only, unit is already given.A.FB =qvsinoMIB ==2лrмолB = NH2RFB =IlB.C.D.

As per our guidelines, we are supposed to answer only first one question in case of multiple…

21.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? A. B = = M₂I 2πr B = N N H₂ I MI 2R F B = qvsine F B = II B. C. D.

21.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? A. B = = M₂I 2πr B = N N H₂ I MI 2R F B = qvsine F B = II B. C. D.

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter24: Electromagnetic Waves

Section: Chapter Questions

Problem 5PE: Verify the units obtained for magnetic field strength B in Example 24.1 (using the equation B=Ec )...

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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

21.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?
O A.
B = =
MI
2лr
B = N
B =
B =
O
B.
C.
D.
NHI
2R
F
qvsino
F
Il

19.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 (µT). Write
magnitude only, unit is already given.
A.
F
B =
qvsino
MI
B =
=
2лr
мол
B = NH
2R
F
B =
Il
B.
C.
D.

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