When the magnetic field changes in a coil of wire, voltage in each loop of the coil is induced. Will voltage be induced in a loop if the source of the magnetic field is the coil itself?

Q: A bar magnet is dropped toward a conducting ring lying on the floor. As the magnet falls toward the…

A: When a conductor is subjected to a varying magnetic field the change in magnetic flux will induce an…

Q: An unmagnetized nail will not attract an unmagnetizedpaper clip. However, if one end of the nail is…

A: Attraction force by a magnet

Q: In electromagnetic induction, explain how does the number of coils affect the current produced?

A: Induced voltage is directly proportional to the number of coils. Therefore, current produced is…

Q: A magnet is moving toward a solenoid and a potential difference is induced between the two ends of…

A: a) if the speed of magnet is increased induced emf will increase because rate of change of flux will…

Q: If the current running through an inductor is increased by a factor of 3, by how much does the…

A: Given:- The  current running through an inductor is increased by a factor of 3 Find:- how much…

Q: When the magnetic flux through a loop of wire is changing the current always flows to what?

A:

Q: What direction of the magnetic field causes a counterclockwise direction of induced emf on the…

A: According to Lenz law, The direction of the induced emf that drives current around a wire loop is…

Q: A spacecraft orbiting the Earth has a coil of wire in it. An astronaut measures a small current in…

A: Given A spacecraft orbiting the Earth has a coil of wire in it. An astronaut measures a small…

Q: Question: A wire loop moves at a constant velocity 2.0 m/s through a constant magnetic field of 0.1…

A:

Q: If you place a metal ring in a region in which a magnetic field is rapidly alternating, the ring may…

A: Given: A metal ring

Q: 7) Currents induced by rapid field changes in an MRI solenoid can, in some cases, heat tissue in the…

A: a) Change in magnetic field,  ∆B=B2-B1∆B=0-1.6 ∆B=-1.6 T Length of the loop, L=8 cm=0.08 m Radius of…

Q: You put a metal ring into a region where the magnetic field is changing quickly. You notice that the…

A: Basic information The magnetic field is the area around the magnet where the magnetic force can be…

Q: Which possible direction would the metal bar move so the lower end has a higher voltage than the…

A: The force on charge in magnetic field is given by  F = q(v × B)  On electron F = -e(v × B)

Q: In an alternator magnets are rotated within windings of conductive wire to produce an emf, is this…

A: An alternator or AC generator is an electrical generator that converts mechanical energy to…

Q: A electric motor has a current running through it and it is rotating counterclockwise in an external…

A: We have an electric motor with a current running through it and it is rotating counterclockwise in…

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.