Currents in the Heart. The body contains many small currents caused by the motion of ions in the organs and cells. Measurements of the magnetic field around the chest due to currents in the heart give values of about 10 uG. Although the actual currents are rather complicated, we can gain a rough understanding of their magnitude if we model them as a long, straight wire. If the surface of the chest is 5.0 cm from this current, how large is the current in the heart?

Q: 3. Coaxial cables are often used to connect electrical devices, for instance in receiving signals in…

A: The current in the loop sets up a magnetic field between the inner and outer conductors that passes…

Q: A long, straight wire carrying a current of 2.6 A is placed in the plane of a conducting strip of…

A: Given I1=2.6A, I2=4.4A d=4.0cm=0.04m, b=8.0cm=0.08m

Q: The diagram below shows two long parallel wires, A & B. The direction of the current for each wire…

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Q: ) Express the magnitude of the force between the wires per unit length, f, in terms of I1, I2, and…

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Q: The figure below shows, in cross section, four wires that are parallel, straight and very long. The…

A: The magnitude of the force felt by unit length of conductor 2 due to the other conductors is 0.248…

Q: Two parallel copper conductors are each 0.700 m long. They carry currents of 10.0 A in opposite…

A: Write the given values with suitable variables. Here, L is the length, I is the current, and F is…

Q: I need help with number 82. It is connected to the following: Four long parallel wires pass through…

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Q: Two infinitely long parallel wires are at a distance of 5.0 cm apart. If the wires carry a current…

A: distance between two wires (d) = 5 cm = 0.05 m current in each of two parallel wires (I) = 1.2 A

Q: The figure below shows, in cross section, four wires that are parallel, straight and very long. The…

A: Given 4 long wires carrying current as shown in figure . Our task is to calculate the value of force…

Q: The figure shows a cross section of three parallel wires each carrying a current of 7.4 A. The…

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Q: In the figure below, the blue wire has a current I = 61 A. The red loop is a square with sides that…

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Q: Four long, parallel conductorscarry equal currents ofI = 5.00 A. Figure P19.49 is anend view of the…

A: The distance of the point is the half of the length of the square.

Q: When operated on a household 110.0 V line, typical hair dryers draw about 1450 W of power. The…

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Q: 4. Two 4.0 m-long parallel wires are separated by 1 cm. The upper wire carries a current of 4 A…

A:

Q: The figure below shows, in cross section, four wires that are parallel, straight and very long. The…

A:

Q: In the figure below, the blue wire has a current I= 57 A and the red loop is a square with sides…

A:

Q: 15. Two long, straight wires are parallel to each other and are 1.0 cm apart. The current through I…

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Q: Credit cards have a magnetic strip that encodes information about the credit card account. Why do…

A: The device that reads credit cards magnetic strips is based on the principle of magnetic…

Q: Two 31-m long parallel wires are 0.155 m apart. Each carries 168 A of current. What is the magnitude…

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Q: Two long, parallel wires are separated by a distance of 2.5 cm. The force per unit length that each…

A: Two parallel wire are separated by 2.5cmF/l = 40uN/m =40x10-6 N/m

Q: The figure below shows an arrangement in which four long parallel wires carry equal currents…

A: Given that:i1=i2=i3=i4=4.5 Aa=40 cm=0.40 m

Q: A 4 m long conductor carrying a current of 10 A in the moon direction lies on the y axis between y =…

A: Required : Work done, W

Q: diagram below shows two long parallel wires, A & B. The direction of the current for each wire is…

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Q: 0.5 A of current passes through a 40 cm long wire. The wire is in a magnetic field and experiences a…

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Q: Two long, parallel conductors, separated by 14.0 cm, carry currents in the same direction. The first…

A: Write the given values of this problem. d=14 cm or 0.14 mI1=7 AI2=8 A

Q: Three long parallel wires are placed at the corners of an equilateral triangle as shown in the…

A: Draw the force diagram for wire 3.

Q: The figure below shows an arrangement in which four long parallel wires carry equal currents…

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Q: Q22. An electron moves in a circular path perpendicular to the axis of a long solenoid that has a…

A: The circular motion of the electron is due to the magnetic field produced by the current flowing…

Q: The figure below shows an arrangement in which four long parallel wires carry equal currents…

A:

Q: When operated on a household 110.0 V line, typical hair dryers draw about 1450 W of power. The…

A:

Q: Three wires carrying current are arranged as shown below. If wire 1 carrie current 1.3 A, wire 2…

A:

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.