You are given a certain volume of copper from which you can make copper wire. To insulate the wire, you can have as much enamel as you like. You will use the wire to make a tightly wound solenoid 20 cm long having the greatest possible magnetic field at the center and using a power supply that can deliver a current of 5 A. The solenoid can be wrapped with wire in one or more layers. (a) Should you make the wire long and thin or shorter and thick? Explain. (b) Should you make the radius of the solenoid small or large? Explain.

Q: A small cylindrical magnet is dropped into a long copper tube. The magnet takes longer to emerge…

A: GIVEN        cylindrical magnet        copper tube

Q: A current loop of radius r=0.35m is centered about the x axis in the plane x=0 and at (0,0,0.35)m…

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Q: A solenoid is formed of a length of wire that carries a constant current I.The solenoid has 66 turns…

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Q: It is desired to construct a solenoid that will have a resistance of 5.45 (at 20°C) and produce a…

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Q: You have 1.0 kg of copper and want to make a practical solenoid that produces the greatest possible…

A: Formula for Magnetic field inside a solenoid:As per Ohm's lawformula for resistance of copper wire

Q: A circular coil with 232 turns has a radius of 2.4 cm. (a) What current through the coil results in…

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Q: A proton with a kinetic energy of 6 MeV enters a homogeneous magnetic field of 1 Tesla at an angle…

A: See below

Q: Please helpe me

A: Given that: Resistance of solenoid 49 ohm.Magnetic field 4 × 10-² T.Current is 4.66 A.Radius 0.250…

Q: atio of the magnetic field

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Q: Two long straight current-carrying wires are lined up parallel to one another in vacuum at a…

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Q: a)Subtract the expression that gives the magnetic field value B(r). (in the region r0 r2)

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Q: A long wire and coil are located in one plane, and a current of 4A flows through the wire and a…

A: Given  Current through long wire (I1)= 4 A Current through coil (I2) = 10 A

Q: For a particular scientific experiment, it is important to be completely isolated from any magnetic…

A: Given:-  The number of turns in a current loop is N = 200  The diameter of the current loop is d = 1…

Q: For a particular scientific experiment, it is important to be completely isolated from any magnetic…

A: Given: The diameter of the loop is 1 mm. The number of turns of the loop is 200. The current in the…

Q: (a) A solenoid is formed of a length of wire that carries a constant current I.The solenoid has 68…

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Q: You have decided that you love physics and want to construct your own solenoid. You find a plastic…

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Q: It is desired to construct a solenoid that will have a resistance of 4.20 N (at 20°C) and produce a…

A: SOlution: Given that R =4.2 Ohm B= 4x10-2 T I = 3.95 A d = 0.5 mm r = 1 cm copper resistivity =…

Q: It is desired to construct a solenoid that will have a resistance of 2.69 ohm and produce a magnetic…

A: Given: Resistance of solenoid: R=2.69 [Ω] Magnetic field: B=4×10-2 [T] Current:  3.71 [A] Diameter…

Q: A uniform magnetic field of strength B=1.2 w/m² exists within an iron core with u=1000H, as shown in…

A: Magnitude and direction of B→a in the air gap. given, B→=1.2 Wbm2permeability of ironμ=1000μo

Q: Niobium metal becomes a superconductor when cooled below 9 K. Its superconductivity is destroyed…

A: The formula to calculate the magnitude of magnetic field is, B=μ0Iπd Thus, the current will be,…

Q: An electromagnet has a magnetic circuit that can be regarded as comprising three parts in series of…

A: To solve this problem, we can use Ampere's law to find the required current in the coil wound on…

Q: A charge is moving perpendicular to a magnetic field and experiences a force whose magnitude is 2.11…

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Q: Some types of bacteria containchains of ferromagnetic particles parallel to their long axis. The…

A: Here, the solenoid is removed from the enclosure and then used in a location where the earth's…

Q: In which direction does the wire feel the force (F)? Highlight one option. The magnetic field (B) is…

A: Standard expression for the magnetic force (F) experience by the wire of length (L) kept in an…

Q: A long straight wire has a radius R, and a current of 3.0 A is uniformly-distributed throughout its…

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Q: Two long straight current-carrying wires are lined up parallel to one another in vacuum at a…

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Q: Two long parallel wires separated by 3.25 cm experience a force per unit length of 4.93 N/m.  They…

A: The problem involves two long parallel wires carrying the same current and experiencing a force. The…

Q: The magnetic field intensity is given in a certain region of space as x+ 2y H -ay +=a, A/m. (a) Find…

A: Given, Magnetic field intensity H is

Q: In your laboratory you have a sensitive piece of equipment which will not function if it is in the…

A: Solution: The strength of the magnetic field which is created by the current carrying long straight…

Q: An ideal solenoid of length 12 cm consists of a wire wrapped tightly around a wooden core. The…

A: Given: The initial length of the solenoid is 12 cm. The final length of the solenoid is 40 cm. The…

Q: The space between two concentric conducting spherical shells of radii b = 2.20 cm and a = 1.10 cm is…

A: Given Data Radii of the concentric shells is b=2.20 cm=2.20 cm×1 m100 cm=0.022 m…

Q: Refer to the figure below. A toroid consists of a ring having an inner radius a and outer radius b.…

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Q: The wire is tightly wrapped around a wooden core solenoid of length 18 cm to produce a magnetic held…

A: Given that magnetic field while tightly wrapped is B1 = 2 Tesla  Length while tightly wrapped is L1…

Q: The diagram in the figure shows a small magnet place near a solenoid AB with its north pole N near…

A: Given: A small magnet placed near a solenoid AB with it's north pole N near the end A.

Q: A thin 30.0 cm long metal bar with a mas of 800 g rests on, but is not attached to, two metallic…

A: A magnetic field is the field of effect of moving charges, i.e., current. When a current flows in…

Q: length 0.32 m can gener Tin its core when its coils windings made of a nio

A: Given as, B=7.0 T,l=0.32 m,I=70 A.

Q: A solenoid used in magnetic resonance imaging ("MRI") has to be large enough for a human being to…

A: To estimate the self-inductance of the solenoid, we need to know its physical dimensions and the…

Q: If vector magnetic potential (A) is zero at a point, does this mean magnetic flux density (B) is…

A: Given in question: Magnetic vector potential is zero at a point(A)=0 To FInd: Does that mean that…

Q: All ferromagnetic materials have a Curie temperature, a temperature above which they will cease to…

A: In Material Sciences, the Curie point or temperature is the critical temperature above which certain…

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.