In a popular lecture demonstration, a cylindrical permanent magnet is dropped down a long aluminum tube as shown above. Neglecting friction of the magnet against the inner walls of the tube assuming that the tube is very long compared to the size of the magnet, will the magnet accelerate downward with an acceleration equal to a free fall? If not, describe the eventual motion of the magnet. Does it matter if the north pole or south pole of the magnet is on lower side?

Q: 4. An infinitely long wire has been bent into the hairpin-like shape shown below. The curved part of…

A: Concept: The schematic diagram of the system is given below, The system is divided into 3 segments:…

Q: A positively charged particle with a charge to mass ratio of 2.41x107 C/kg follows a path with a…

A: Given data- charge to mass ratio qm=2.41×107 C/kg radius of path R=7.50 mm =7.50 × 10-3 m magnetic…

Q: Q3. A rod rests on two parallel rails (Fig.) that are d = 12.0 cm apart. The rod carries a current…

A:

Q: 1 Which of the following is incorrect. Earth's magnetic poles and geographic poles differ. They want…

A: Last option

Q: alignment

A: If a compass needle is suspended freely, then it points in a north-south direction. The magnetic…

Q: A straight conductor carrying a current i = 6.1 A splits into identical semicircular arcs as shown…

A: Curreny (I) = 6.1 A radius (r) = 8.5 cm = 0.085 m

Q: A wire of length e = 0.85 m is conducting a current of i = 7.5 A toward the top of the page and…

A: Given data:  Length (L) = 0.85 m Current (I) = 7.5 A, towards top of the page  Magnetic field (B) =…

Q: Twenty amps of current flows through a square loop where each side is 20 cm in length. At each…

A: Given, length of each side l = 20 cm Current flowing = 20 A If we calculate the magnetic field due…

Q: A horizontal wire carries a current to the North in a region of space where a magnetic field is…

A: Here we can use left hand rule.

Q: Need some help. A solenoid is created by winding wire with n turns per unit length around a…

A: Given A solenoid having n number of turns per unit length, with length ℓ and cross -sectional area.

Q: A long straight wire carries current in the +x direction as shown in the figure. Determine the…

A: The direction of magnetic field can be find by right hand curl rule.

Q: 3. A proton is released at point P with an initial velocity of 1 x 105 m/s directed to the right, as…

A:

Q: A power cord for an appliance contains two parallel wires (separated by an insulator) that carry…

A:

Q: The force on the rectangular loop of wire in the magnetic field in the figure below can be used to…

A: Question a and b are same so solution is same for a and b.

Q: A positively-charged point particle, q, with a speed of v = 3.0 x 105 m/s enters a uniform magnetic…

A: Lorentz law  When a moving charge particle enters a uniform magnetic field it experiences a force if…

Q: Can you answer problem 8? Can you also provide a short explanation for the answer you chose?

A:

Q: Which one of the following statements concerning permanent magnets is false? Magnetic field lines…

A:

Q: A loop of wire with a current is in uniform magnetic fields. In one situation the wire is halfway in…

A: To conclude:Which of these will have a net force?Which would have a net torque?Which direction will…

Q: 5. The loop of wire shown in Figure. A2.3 forms a right triangle and carries a current I = 5.00 A in…

A: in this question  we determine  force by simple equation .

Q: Consider an infinitely long wire carrying a current I1 at the left of a rectangular loop with length…

A:

Q: The wire loop shown below carries a current I in the direction indicated by the purple arrows.…

A: Note that the segments ab and cd do not contribute to any magnetic field at center. The field due to…

Q: In this problem, you will design a shake flashlight that can power a standard 1W, 3V flashlight…

A: The number of turns in the coil can be determine from induced emf. ε=N∆φ∆t…

Q: A solenoid is shown below. The current in the solenoid is clockwise as viewed from the right side.…

A: Using the right-hand rule to evaluate the direction of the magnetic field. Right-Hand Rule:- In this…

Q: Two long straight current-carrying wires are lined up parallel to one another in vacuum at a…

A: We have two wires say 1 and 2 carrying currents I1 and I2 separated by a distance d. Consider the…

Q: A straight conductor carrying a current i = 8.5 A splits into identical semicircular arcs as shown…

A: Magnetic field due to circular coil B = μ₀I /2 R

Q: Rail gun weapons are not only popular in video games, they are actually being developed by the Navy…

A: Given. V = 9900 V R = 0.194 ohm M = 1.79 kg B = 0.56 T

Q: Vo E switch Immersed in a Magnetic Field Mass M Resistance R Length L d

A: Given. V = 9400 V R = 0.200 ohm M = 1.95 kg B = 1.09 T L=0.230 m d=3.92 m

Q: A bar magnet (the shaded cuboid object in the figure) is placed as shown in the figure, with its…

A: Here arrow shows the direction of field lines inside the magnet and outside

Q: In the diagram... two wires that carry a current of identical magnitude in opposite directions are…

A: Right hand thumb rule is used to find the direction of magnetic field due to an electric current…

Q: Consider the following figure. (a) A conducting loop in the shape of a square of edge lengthl =…

A:

Q: 9. Determine the magnetic field (magnitude and direction) within the region of space that contains…

A: Given ,  Length of wire = 0.150 m Length of wire inside magnetic field  , l = 0.100 m Current in…

Q: A wire of length e = 0.35 m is conducting a current of i= 8.5 A toward the top of the page and…

A:

Q: Some pacemakers employ magnetic reed switches to enable doctors to change their mode of operation…

A: Given: In this question, the given details are, Some pacemakers employ magnetic reed switches to…

Q: Consider a 150 turn square loop of wire 17.5 cm on a side that carries a 46 A current in a 1.75 T…

A:

Q: (a) Please explain what you understand about the graph shown in Figure 4. Impedance Inductive…

A: To explain the understanding about the graph.

Q: Determine the force caused by the magnetic field on the wire in the picture below. Hint: Integration…

A:

Q: What are ferromagnetic materials? Why does the magnetization curve of these materials form a…

A: We have to write the ferromagnetic substance

Q: e of the magnetic field (in ×10-5 T) given by I3 only at the other corner of the square, point P, if…

A:

Q: -R = 28.2 cm from on is the magnitude of t

A:

Q: hree wires sit at the corners of a square, all carrying currents of 3 amps into the page as shown…

A:

Q: A bar magnet falls through a loop connected to a galvanometer as shown in the figure. Which of the…

A: When the magnet is moving that means it is stationary then the galvanometer shows no deflection at…

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.