According to Oersted’s Principle,       A)  opposite poles attract, like poles repel.   B)  None of these choices is correct.   C)  current moving through a conductor produces a magnetic field around the conductor   D)  a current carrying wire placed at 90o to an external magnetic field will experience a force perpendicular to both the current and the field.

Q: Two long straight wires run parallel to one another with current flowing in opposite directions…

A:

Q: Calculate the speed of an electron if it travels in a circular path of radius 50 cm in a magnetic…

A: Given: B= 5 × 10-3 T r =50 cm

Q: Answer the Multiple Choice Questions: 1- The mass of an object: A. is slightly different at…

A:

Q: A strong magnetic field is applied on a stationary electron. Then the electron a. moves in the…

A: To explain the behavior of an electron when a strong magnetic field is applied on it.

Q: A duck accumulates a positive charge of 3.0 × 10-8 C while flying north at speed 18 m/s. Earth's…

A:

Q: A stationary positive charge +Q is located in a magnetic field B, which is directed toward the right…

A:

Q: The current in two long parallel wires is 3 A. Find a). the magnitude of the net magnetic field at…

A: Given: Current in both wire i = 3 A. Distance between both wires d = 0.12 m.

Q: What is the magnitude of force on an electron traveling east at 1.53 x106 m/s within a 5 T magnetic…

A: The speed of an electron is, v=1.53×106 m/s The magnitude of the magnetic field is, B=5 T The charge…

Q: When a charge moves parallel or antiparallel to the direction of the magnetic field, it experiences…

A: To State: When a charge moves parallel or antiparallel to the direction of the magnetic field, it…

Q: A beam of electrons is moving horizontally straight toward you. As it approaches, it passes through…

A: To calculate direction of magnetic force (F) , we use the following equation The magnetic force on a…

Q: Magnetic fields and magnetic forces Two wires run parallel to each other and carry current that…

A: Given Current is flowing in two parallel wire in the same direction . We have to find force between…

Q: electron is moving WEST in a region where the magnetic field is directed from NORTH to SOUTH. The…

A:

Q: Which feature of electromagnets makes them more useful than permanent magnets in many modern…

A: Electromagnets are the magnets constructed using electric current and coils. Electromagnets are…

Q: 5) An electron is moving, in a straight line, through a magnetic field, which of the following is…

A: Here, the electron  is moving  in straight line  So moving  charge creates  the  magnetic field.…

Q: Which of the following best describes magnetic field lines around a current-carrying wire? They form…

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Q: In general, when a charged particle enters a uniform magnetic field at a nonzero angle, the…

A: general, when a charged particle enters a uniform magnetic field at a nonzero angle, the resultant…

Q: Can two magnetic field lines cross? If so, give an example. If not, explain why not.

A: Two magnetic field lines cannot intersect each other. The magnetic field is unique at any point.

Q: By using a compass to measure the magnetic field direction at various points adjacent to a long…

A: By using a compass to measure the magnetic field direction at various points adjacent to a long…

Q: Length of wire=L Current wire is carrying = | Angle wire makes with respect to the uniform magnetic…

A:

Q: A negatively-charged particle travels parallel to magnetic field lines within a region of space.…

A: Magnetic force acting on a charged particle is given by,

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.