1.  a. What will be the direction of the current in the wire just above the bar magnet when you close the circuit? ___________  b.. What direction is the B field at the location of the wire due to the bar magnet? (Assume the N pole is the top end of the bar magnet.) _____________ c.. What does the right-hand-rule predict for the direction of the force on the wire? ______________

Q: The diagram below shows two, thin, infinitely-long, parallel conducting wires that are separated by…

A:

Q: A wire having mass per unit length of 0.425 g/cm carries a 2.34 A current horizontally to the south.…

A: To determine,The direction and magnitude of the minimum magnetic field(B)needed to lift this wire…

Q: In the following figures, each conductor carries 2.0 A of current into or out of the page. Draw a…

A: The above problem can be solved by using Ampere's Circuital Law.  According to this law

Q: The half-spherical shell in the figure below has a radius R. Suppose that the magnitude of the…

A: Magnetic flux is given as ϕ =B→.A→ = BAcosθWhere, B=Magnetic fieldA = cross section areaθ = Angle…

Q: consider a spring used as a solenoid with a magnetic field of 0.25 T. What is the magnetic field if…

A: Given data: Original strength of magnetic field is, B=0.25 T.

Q: Which of the following can induce an emf in a loop of wire placed in a region where a magnetic field…

A: According to Faraday's second law Induced emf = - rate of change of magnetic flux

Q: A beam of electrons moves in the direction indicated by the blue arrow.  In what direction would the…

A: Right-hand thumb rule: Thumb rules state that if the thumb of the right-hand points in the direction…

Q: o obtain a value for magnetic flux, the magnetic field must be oriented perpendicular to the plane…

A: Given, To state whether magnetic field must be oriented perpendicular to plane of area vector for…

Q: Choose the correct answer.   1. Magnetic field inside a solenoid is .  A. Strong at N pole and weak…

A: Magnetic field inside a solenoid is .  A. Strong at N pole and weak at S pole B. Strong…

Q: 1. A thin ring rotates about an axis perpendicular to a uniform magnetic field H. Its initial…

A: Let the area of the ring be A, the radius of the ring be a, the resistance of the ring be R, the…

Q: 3. A wire is moving on frictionless rails in a uniform magnetic field, as shown to the right. The…

A: We have a wire of length L=5 cm=0.05 m which is moving along a rail experiencing a magnetic field of…

Q: What can we infer about the magnetic flux in different surfaces of a bar magnet if the surface: a.…

A: Required :  The magnetic flux.

Q: 21. In the following wire, conventional current is flowing to the right. In which direction will the…

A: 21. Introduction: According to the right-hand thumb rule, if the thumb points towards the direction…

Q: A thin conducting ring of radius a lies in the x-y plane and carries an alternating current I = I0…

A: a) The electric dipole moment of the ring can be calculated using the formula: p = IA where I is the…

Q: 1. Enter the data from the chart, construct a graph of BL (T) vs x (cm).  A. Describe the…

A: Solution: As per the given data,

Q: The diagram below shows two concentric, conducting, circular loops with currents traveling in…

A:

Q: Which of the following are true?   I. In a ferromagnet, permanent atomic magnetic moments tend to…

A: In a ferromagnet, permanent atomic magnetic moments tend to align parallel to each other even in…

Q: A current flows in a conductor from East to West. The direction of the magnetic field at a point…

A:

Q: what is the difference between a conductor and an insulator a. a conductor is magnetic and an…

A: Insulators: These are substance which  do not allow electricity to pass through it. They do not have…

Q: 4. The following diagram shows the current direction in a straight conductor. Draw the magnetic…

A: Magnetic field.

Q: A 2000 winding coil has a length of 20mm and a winding thickness of 5mm. If the coil carries a…

A: Given: N=2000, L= 20mm,  t=5mm,  I=5mA = 0.005A

Q: A magnetic field is generated when using an electromagnet. The events that occur to create the…

A: Required : The correct order of events. (C) Wrap a wire to create loops. (A) The magnetic domains…

Q: A coil of wire has an area of 2.0 cm?, consists of 150 loops or turns, and contains a current of…

A:

Q: 7. Which of the following is a good description of the domains found in the south pole of a bar…

A: The question asks about the description of the domains found at the south pole of a bar magnet.

Q: An unknown charge is curving under the influence of a magnetic field. What is the sign of the…

A:

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

A:

Q: 5. A uniform external magnetic field, created by something you don't see here, points upward, in the…

A: The objective of the question is to determine the direction of the current in the wire and to draw…

Q: A coil of wire has 400 turns, each of area 50 cm2. What B-field is required if a 4.5 A current…

A: Given data:  Number of turns (n) = 400 Area (A) = 50 cm2 = 50×10-4 m2 Current (I) = 4.5 A Maximum…

Q: 6. A power line carries a current of 95 A west along the tops of 8.5 m high poles. a. What is the…

A: Given  The amount of current in the power line is I = 95 A. The distance between the wires is r =…

Q: When it comes to magnetic fields lines, which of the following statements is not true? A. The…

A:

Q: What happens to the flow of current when the south pole of a magnet is moving towards a coil of wire…

A: What happens to the flow of current when the south pole of a magnet is moving towards a coil of wire…

Q: 3. You have a loop of wire as shown which is only free to rotate about the y axis. The magnetic…

A:

Q: A conductor is located between the poles of a horseshoe magnet. Current flows in the direction…

A: When a current carrying conductor is placed in a magnetic field, then magnetic force is exerted on…

Q: Indicates the direction of the current (I) in the conductor below from the magnetic field lines.…

A:

Q: For the magnetic structure below, draw the equivalent circuit beside it. Be sure

A: Given:magnetic circuits with mmf sources and air gapsAsked:to find equivalent circuits and also to…

Q: Suppose the current density, J, is given by J = ks²2 for a cylindrical wire oriented along the…

A: The objective of the question is to determine the magnetic field in a cylindrical wire at different…

Q: A circular loop with diameter of 100 cm carries a current of magnitude 50 mA . What is the magnitude…

A: Diameter of circular loop d = 100 cm = 1 m Radius = d/2 = 1/2 = 0.5 m Current I = 50 mA = 50*10-3 A…

Q: A changing magnetic flux induces a current in a wire that produces a magnetic field that has an…

A: A changing magnetic flux induces a current in wire that opposes cause of change in magnetic flux as…

Q: charged object with a mass of 1.00 x10 -19kg enters a magnetic field at a speed of 105 m/s, causing…

A:

Q: 4. Two parallel wires carry the same current and are at a distance r from each other. a. They repel…

A:

Q: Identify the wrong statement. O a. Magnetic field lines cross each other at a given point. O b.…

A:

Q: 2. A 22 cm by 35 cm rectangular coil has a single turn and carries a current of 1.4 A. Initially the…

A: Given, Rectangular coil  a=22cm b=35cm Current I=1.4A Magnetic field B= 1.6T

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.