An az oriented solenoidal coil with 1000 turns per meter has a diameter of 2 cm and is 20 cm long. It is filled with an iron bar with a lr = 10 lo of the same size. The iron has a density of 7.87 g/cm3. %3D Choose the minimum current that is required to keep the iron bar inside the solenoid in the earth's gravitational field of -9.8 m/sec2 a, (in other words, so that it will not fall)?

Q: 47.0 cm of copper wire (diameter = 1.10 mm, resistivity = 1.69 × 10-8Ω·m) is formed into a circular…

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Q: A loop of radius a = 7.5 cm lays in the x-y plane, in a region of uniform, time-dependent magnetic…

A: Given data The radius of the loop is a = 7.5 cm. The magnetic field given as B(t) = 1.5 (T/s)t k The…

Q: A single loop of wire with a radius of 7.5 cm rotates about a diameter in a uniform magnetic field…

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Q: tic field exceeds 0.10

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

Q: A long copper strip 1.8cm wide and 1.0mm thick is placed in a 1.2T magnetic field. When a steady…

A: Given: w =1.8 cm =1.8*10-2 mt = 1.0 mm =1.0 *10-3 mB=1.2 TI=15 A∆V=1.02 μV=1.02*10-6 V

Q: A tangent galvanometer has 50 turns each of diameter 15 cm,. When certain current is passed through…

A: To find-Current (I)=?Given-n=50Diameter=15 cmradius (r)=7.5×10-2 mθ=450BH=2×10-5 Wb/m2μ0=4π×10-7…

Q: A long vertical wire carries an unknown current. Coaxial with the wire is a long cylindrical…

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Q: A long copper strip 1.2 cm wide and 0.50 mm thick is placed in a 1.4 T magnetic field as shown in…

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Q: To scan a patient, you need a magnetic filed of 0.4 Tesla. You have a solenoid of length 0.08 meters…

A: Numbers of turn = 1500 Magnetic field (B) = 0.4 T Length = L = 0.08 m

Q: A single loop of wire with a radius of 1.0 cm has a current of 3.0 Amps. What is the magnetic field…

A: radius of the loop (r) = 1 cm = 0.01 m Current in the loop (I) = 3 Amps

Q: An air-core solenoid with 1100 loops is 70 cm long and has a diameter of 4.0 cm. If a current I =…

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Q: A long solenoid magnet with radius R= 10cm designed for a fusion reactor is wound with super…

A: Given data: Number of turns per unit length n=180 turns per meter. Current through the coil I=30…

Q: A coil consists of 100 turns of wire in shape of circle placed in the y- z plane. The loop has an…

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Q: A(n) 26.3 cm length of wire when used as a re- istor has a resistance of 0.00483 2. The ends of the…

A: Given, the length of the wire, l= 26.3 cm= 0.263 m. the resistance of the loop, R=0.00483 Ω Magnetic…

Q: A circular loop made of copper wire with a diameter 0.96 mm is placed in a uniform magnetic field…

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Q: Two long straight aluminum wires, each of diameter 0.40 mm, carry the same current but suspended by…

A: The current I1 and I2 flowing through the two aluminum wires in opposite directions, hence they…

Q: A copper wire (resistivity is 0.17 n m) of length L and radius 1 mm has a resistance of 5,41 0. A…

A: Given, A copper wire which has radius 1 mm and a solenoid which has radius 3 cm and length is 10cm…

Q: 3. A square coil (side = 4 cm) with 12 turns lies in the xy- plane. Its sides are parallel to the…

A: When a current carrying loop is kept in a magnetic field, it experiences a torque. This is because…

Q: A conductive loop on the x-y plane is bounded by p = 2.0 cm, p = 6.0 cm, 0 = 0º and 90°. 1.5 A of…

A: To determine the magnetic field strength (H) at the origin due to the current flowing in the…

Q: A long straight wire conductor in the form of a concentric cylindrical tube of inner radius R₁=10 cm…

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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 conducting bar of length L = 0.40 m rotates in a %3D counterclockwise direction with a constant…

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Q: A uniform magnetic field points from the S to N and has a magnitude of 0.022 T. A straight copper…

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Q: 6.0 A current flows through a 5.0 m thin and straight conductor wire. What is the magnitude of the…

A: Magnetic field due to finite wire at distance r from its midpoint is is given as  B = uoI sinϕ/ 2πr…

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: A 65.1-cm-diameter coil consists of 20 turns of circular copper wire 8.67 mm in diameter. A uniform…

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Q: 7. A sheet of copper foil 1 mm thick, 5 cm wide and 1.75 m long is connected to a voltage source as…

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Q: A current I flows in a w x w square loop in free space as in figure. Find the magnitude of magnetic…

A: Concept used: Magnetic flux density is inversely proportional to distance to field point.

Q: You want to build a giant solenoid of one layer of tightly-wrapped 12-gauge copper wire (diameter is…

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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: A copper wire is 10.00 m long and has a cross-sectional area of 2.00 ✕ 10-4 m2. This wire forms a…

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Q: A solenoid has a length of 15mm and a radivs of 0.25 mm and consists of 5000 circular turms. If a…

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Q: A certain superconducting magnet in the form of a solenoid of length 0.30 m can generate a magnetic…

A: Given data: The length of solenoid is L=0.3 m. Magnetic field is B=10 T. Current carried I=80 A.…

Q: What is the magnitude of the current in the loop? Express your answer with the appropriate units.…

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Q: The 12.0 cm long rod as shown moves at 4.00 m/s.What is the strength of the magnetic field if a 95.0…

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Q: A piece of copper wire has a resistance per unit length of 4.63 x 10/m. The wire is wound into a…

A: Given  Resistance per unit length = 4.63 × 10-3  ohm/m  Applied potential difference V = 12 Volt…

Q: Tutorial Exercise In an experiment designed to measure the Earth's magnetic field using the Hall…

A: Given that  thickness t = 0.415 cm                     current = 8 A         hall voltage = 5.52…

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.