A metal rings lies on a table. The south pole of a bar magnet moved down toward the ring from above and percendicular to its surface. Which answer and explanation correctly predict the direction of the induced current as seen from above? A) Counterclockwise becuase the magnetic field is up and increasing  B) Clockwise because the magnetic field is down and increasing C) Clockwise beacuse the magnetic field is up and increasing  D) Counterclockwise because the magnetic field is down and increasing  E) There is no current, it only changes when the north pole approaches

Q: Q) The opposite figure shows magnetic field lines caused by a continuous electric current passing in…

A: D

Q: 11 A 24-turn circular coil of wire has diameter 1.08 m. It is placed with its axis along the…

A: Average emf = 8.789 mV Explanation:

Q: A loop of wire lies flat on the xy plane and has a magnet above it with the south side pointed down…

A: To determine the direction of the induced current we use Lenz's law-  '' Lenz's law states that the…

Q: If I have a uniform and constant magnetic field extend- ing to infinity in the yz-plane and pointing…

A: since the ring is moving in a uniform and constant magnetic field, the magnetic flux through the…

Q: Predict: If a stronger magnet is used to create the change in magnetic field, the current produced…

A: Given : What happens to the current through the coil if a stronger magnet is bought near to it ?

Q: The picture below shows a side view of how the current if flowing in several loops of a solenoid.…

A: Step 1: Step 2:na Step 3: Step 4:

Q: A 95-turn square wire coil of area 0.040 m² rotates about a vertical axis at 1,510 rev/min, as…

A: Solution:-Number of turns (N)=95Area of coil (A)=0.04 m2Angular speed (N)=1510 rev/minHorizontal…

Q: Due to the bar magnet being pulled away from the solenoid the induced pole that is created at…

A: According to Lenz’s law, the induced magnetic field will be induced such that it opposes the change…

Q: Draw two diagrams showing the direction of current induced in a coil both when a magnet moves toward…

A: Lenz's Law:- Faraday's law and Lenz's law are the two fundamental laws that regulate…

Q: A magnetic field is perpendicular to and pointing out of a closed loop of wire that you can imagine…

A:

Q: A circular conducting loop with radius 5.80 cm is placed in a uniform magnetic field of 0.780 T with…

A:

Q: current-carrying wire passes near a wire loop the figure below. The current in the straight wire is…

A: We know that We have given that the A long, straight, current-carrying wire passes near a wire loop…

Q: A loop of wire in the shape of a circle has a magnetic field directed perpendicular to the plane of…

A: Magnetic flux : ϕ=∫B.dA According to Faraday's law: E=-dϕdt

Q: For a solenoid in vacuum of length L=10 cm with 104 turns per meter calculate the value of the…

A: Given The length of the solenoid is L=10 cm=10×10-2 m. The number of turns is N=104 turns/m. The…

Q: (100) A loop of wire sits in a uniform magnetic field as shown in the figure. The area of the loop…

A: The induced emf is given by,

Q: О N The figure below (from the textbook) shows a bar magnet being held just above a loop of wire.…

A: Step 1: Step 2:

Q: Consider the magnetic field created by the coil carrying current shown below: Magnetic field Coil…

A: A  coil carrying current creating magnetic field is given . To find = How to increase current .

Q: Che electric field in a region of space increases from 0 to 3750 N/C in 3.20 s. What is the…

A: Data Given ,  Electric field increases from 0 ( E1 ) to 3750 N/C ( E2 )  Time ( t ) = 3.20 s…

Q: A loop of wire has the shape shown in the drawing. The top part of the wire is bent into a…

A: Radius of the semicircle is Magnetic field is Find:The change in magnetic flux.

Q: The two parallel wires shown below carry current in opposite directions and are separated by a…

A:

Q: A magnet is oriented next to a coil as shown in the figure below. The coil is moving in the…

A: Lenz's law will give us the direction of the induced magnetic field.

Q: 3. The moving rod in the figure is 25.0 cm long and moves with a speed of 22.0 cm/s. If the magnetic…

A: Length of rod ,L=25 cm =0.25 mMagnetic field ,B = 0.6 TVelocity,V = 22 cm/s =0.22 m/sResistance…

Q: A single square loop of wire 18.5 cm on a side is placed with its face parallel to the magnetic…

A: Given  side of square wire(L)=0.185 m current in loop (I)=5.40 A Torque on loop=0.320 Nm Required…

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.