what is magnetic energy stored în a toroid o f wire with a sqjuare ross section of side length a, N totai winds, inner dadius R Land current I?

Q: Find the magnetic field at point P of the steady current configuration shown R

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Q: How the magnetic field changes when we change the permeability value? Explain why.

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Q: A wire of 20 cm carrying a current of 33.5A, is kept between the poles of a strong magnet and makes…

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Q: A wire of 16 m carrying a current of 3SA, is kept between the poles of a strong magnet and makes at…

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Q: It is desirable to calculate the magnetic field at point o:

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Q: In a science laboratory, you rub a glass rod with silk, placing a 25-nC positive charge on it.…

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Q: A wire carrying a 23A current passes between the poles of a strong magnet that is directed at angle…

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Q: A 0.085-T magnetic field passes through a clrcuular ring of radlus 4.1 cm at an angle of 22 with the…

A: Given data: Magnetic field is B = 0.085 T Radius of the ring is r = 4.1 cm = 0.041 m The magnetic…

Q: A wire carrying a 23A current passes between the poles of a strong magnet that is directed at angle…

A: Given: Current in the wire I=23 A Length of wire is l=20 cm=0.2 m Angle made by wire with the…

Q: A flat circular coil which has ? turns each of diameter d carries a current ?. If ?0 is the…

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Q: |There is a 30cM long Solenoid witha o3 ľ faxce field initas Center Ito has a 4cM radis and has…

A: The given data are: L=30 cm=0.3 mB=3 Tr=4 cmN=80000 Here, L denotes the length, B denotes the…

Q: A wire of 6 cm carrying a current of 39.5A, is kept between the poles of a strong magnet and makes…

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Q: he S.I unit of magnetic field is

A: 1------ Magnetic field unit is .... TESLA....... OPTION A..... Ampere -unit of current  Ohm-- unit…

Q: vnich statement best describes the two bar magnets snown?

A: Given: Two bar magnets

Q: At the equator, near the surface of the Earth, the mag- netic field is approximately 50.0 µT…

A: Given The magnetic field of the earth is ME=50 μT=50×10-6 T. The electric field of earth is EE=100…

Q: What is the magnetic induction at appoint 6m from a North pole of strength 150 amp-meters?

A: Recall B=magnetic field due to monopole=μ04π×md2

Q: Prove that the total net magnetic force onany current-carrying closed loop in anyuniform magnetic…

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Q: If one were to cut a small permanent bar maget in half,  would each piece in itself be a smaller bar…

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Q: Which of the following magnetic fields is oorrect for a single bar magnet? O . O d.

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Q: using biot savart law, determine the vector of magnetic induction B in center of a circular…

A: BIOT SAVART'S LAW : Magnetic field induction at any observation point from distance r is given by :…

Q: Question 16: A particle of mass m and charge 4 moves in a constant magnetic field in a circular pat…

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Q: Find the magnetic field at point O due to sem infinite wire shown in figure. y R 45°

A: Explanation: Magnetic field at point O due to a semi - infinite wire is              B = (μ0 I / 4 π…

Q: If the circular conductor ndergoes thermalexpansion while it is in a uniform magneticfield, a…

A: Lenz’s law states that the polarity of induced emf is such that it tends to produce a current which…

Q: A thin semicircular conducting ring (PQR) of radius * is falling with its plane vertical in a…

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Q: If length ofthe arc is 20 cm, radius R=8 cm and a current through aloop I=20 A, what is the…

A: Given, L=20cm=.2m R=8cm=.08m I=20A Now for an arc Magnetic field at the center is φ is the angle…

Q: the direction of the magnetic force is 个y Be I R Select one: Oa.k

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Q: What is the magnetic field at 5 cm far from a long straight conductor which carries 10 A current.

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Q: If length of the arc is 20 cm, radius R=8 cm and a current through a loop I= 20 A, what is the…

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Q: the figure, we see a current loop lying in the YZ plane, whose center is at the origin of the…

A: Equal and opposite component cancelled each other

Q: le electric motor consists of a 220-turn coil, 4.2 cm in diameter, mounted between the magnet that…

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Q: A wire of 18 cm carrying a current of 33.5A, is kept between the poles of a strong magnet and makes…

A: Given that:- Length of wire =18cm Magnetic field strength (B)=?

Q: Cryomagnetics, Inc., advertises a highfield, superconducting solenoid that produces a magnetic field…

A: Magnetic field, B = 17 T  current, I =105 A

Q: An infinitely long line lies on the z-axis, and carries current I, using Ampere's law find the…

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Q: Q no: 01 (a) Discuss the origin of paramagnetism, diamagnetism and ferromagnetism.

A: Origin of diamagnetism: Diamagnetic materials are the materials that one put in an external magnetic…

Q: At the equates near the surface ef the Earth, the magnetic feld is appreximately 50.0 T nerthward.…

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Q: rticle with unknown properties moves into a region of space containing both a uniform ric field and…

A: Force on charge particle in electric field = qE Force due to magnetic field = qvB Sin θ

Q: How is the magnetic field due to a straight current carrying wire affected when the current is (a)…

A: Magnetic field due to a current carrying conductor depends on the current in the conductor and…

Q: 3.00 A, where the radius of the circular arc is R = cm. Determine the magnitude and direction o…

A: magnetic field at centre of circular coil =μ₀I/2R

Q: In a bar magnetic, where is the magnetic fields/forces strongest at?

A: The magnetic field lines are denser near the pole of bar magnet. Denser magnetic field lines means…

Q: When is the force experience by a current carrying conductor placed in a magnetic field larges?

A: The force experienced by a current carrying conductor placed in a magnetic field is given…

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.