A very thin metal rod hangs from 2 flexible wires. The rod has a length of 0.62m and has a mass of 0.013kg. The rod also sits in a magnetic field, shown below by the X’s and has a magnitude of 0.44T. When must be the magnitude and direction of the current that runs through the bar so there is no tension in the supporting wires?

Q: An unusual lightning strike has a vertical portion with a positive current of +400 A upwards. The…

A:

Q: In the figure below, an iron bar sitting on two parallel copper rails, connected to each other by a…

A: GIVEN: Force Fapp =1.35N Resistance R = 8Ω speed of bar =1.85m/s

Q: A wire (mass = 50 g, length = 40 cm) is suspended horizontally by two %3D vertical wires which…

A: Mass of wire, m=50g or 0.05Kg Length of wire, l=40cm or 0.4m Magnetic Field, B=60 x 10-3T

Q: 1/₂ x 1 X x 13 P

A: Given  current(i)=3 Amp side of square (a)=1.2  cm Required magnetic field due to I2 at point P

Q: A wire (mass = 50 g, length = 40 cm) is suspended %3D horizontally by two vertical wires which…

A:

Q: A solenoid having N turns and carrying a current of 2.000 A has a length of 34.00 cm. If the…

A:

Q: A conducting thin rod of length L is suspended by two flexible wires as shown in the figure. The rod…

A: Given: The mass per unit length of the wire is 0.015 kg/m. The strength of the magnetic field is 3…

Q: A long straight wire is bent as shown to form two parallel straight wires and a semicircle (radius =…

A: The Biot Savart law is given by:

Q: A wire (mass = 50 g, length = 40 cm) is suspended horizontally by two vertical wires which conduct a…

A: Free body diagram of a system is as follows:

Q: A solenoid used to produce magnetic fields for research purposes is 2.0 m long, with an inner radius…

A:

Q: The force on a magnetic dipole mu aligned with a nonuniform magnetic field in the x direction is…

A: a. Consider a point at x a distance from one ring, then the distance of this point from the second…

Q: A 86-cm long solenoid is to produce a magnetic field of 1.46 mT at its center. How much current…

A: The formula for the magnetic field of a solenoid is given by, B=μ0NIL Where, N = number of turns in…

Q: A 0.50-m long solenoid consists of 1000 turns of copper wire wound with a 4.0-cm radius. When the…

A: The magnetic field inside a solenoid is given by the following expression B = μ₀ n I…

Q: In a square loop with the side 0.20 m and the current electric is I = 2.0 A, see picture below. A…

A:

Q: Consider the configuration shown below. The loop of wire, which is inside the solenoid, has the…

A:

Q: A wire of length 50 cm and mass of 12 g is suspended in a horizontal plane by a pair of flexible…

A:

Q: Within the green dashed circle show in Figure P30.21, the magnetic field changes with time according…

A: Given : B = 2.00t3 - 4.00t2 + 0.800 R = 2.50 cm = 0.025 m t = 2.00 s r = 5.00 cm = 0.05 m

Q: wire loop with 60 turns is formed into a square with sides of length s. The loop is in the presence…

A:

Q: A wire (mass = 50 g, length = 40 cm) is suspended horizontally by two vertical wires which conduct a…

A: Given data: The mass is m = 50 g The length is L = 40 cm The current is i = 17.8 A The magnetic…

Q: In the figure, part of a long insulated wire carrying current i = 7.30 mA is bent into a circular…

A: Current, I = 7.3×10-3 ARadius, R = 0.0135 m Vacuum permeability, µ0 = 4π×10-7 H/m (a) Bx = 0By = 0Bz…

Q: I am unsure of the formula for parts A and C.

A:

Q: A wire (mass = 50 g, length = 40 cm) %3D %3D is suspended horizontally by two vertical wires which…

A:

Q: In the figure, part of a long insulated wire carrying current i = 7.30 mA is bent into a circular…

A:

Q: In the figure, part of a long insulated wire carrying current i = 8.32 mA is bent into a circular…

A:

Q: Two long, parallel wires carry currents of I, = 2.55 A and I, = 4.90 A in the directions indicated…

A:

Q: A long iron bar lies along the x-axis and has current of I = 14.8 A running through it in the…

A:

Q: A very long, straight wire, carries a current ????? in unknown direction. The wire is next to a coil…

A: RecallB=μ0I/2πr for long conductorB=μ0I/2r for loop

Q: A horizontal wire of length 3.0 m carries a current of 6.0 A and is oriented so that the current…

A: We may represent the direction of current and magnetic field as, Force on current carrying wire due…

Q: A rectangular coil, with corners labeled ABCD, has length L = 9.00 cm and width w = 3.00 cm. It is…

A:

Q: A wire (mass = 50 g, length = 40 cm) is suspended horizontally by two %3D vertical wires which…

A: When a current-carrying conductor is placed in a magnetic field, it experiences a force. The…

Q: A conducting bar of length L=80 cm is rotated on a conducting circular platform as shown in the…

A:

Q: A wire (mass = 50 g, length = 40 cm) is suspended horizontally by two vertical wires which conduct a…

A: Tension in either wire will be = 0.

Q: The magnitude of the magnetic field inside a solenoid (far from its ends) is 5.97 mT.  If the…

A: Given- B = 5.97 mT L = 58.2 cm = 0.582 mI = 5.67 Aμ = 4π × 10-7

Q: For the hexagonal loop in the figure below, given that the loop carrying a current of 10.9 A and the…

A: In this given problem, we first find the magnetic field at the centre of the  loop by on side of…

Q: The magnitude of the magnetic field at the center of a 25.0cm long solenoid with 650 turns is…

A:

Q: In the figure, part of a long insulated wire carrying current i = 7.19 mA is bent into a circular…

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…

Q: Two long, straight wires are separated by 0.12 m. The wires carry currents of 3.0 A in opposite…

A: Given, Current=3A

Q: A wire (mass = 50 g, length = 40 cm) is suspended horizontally by two %3D vertical wires which…

A:

Q: Two long straight wires are parallel and carry current in the same direction. The currents are 8.0…

A: The expression for the magnetic field due the current carrying wire is as follows: B=μoI2πd Here, B…

Q: A toroidal solenoid has 825 coils. How large a current must it be carrying so that the magnetic…

A: Here given a solenoid have 825 coils. The magnetic field is 0.025 T at a distance 17 cm. We have to…

Q: A wire (mass = 50 g, length = 40 cm) is suspended horizontally by two vertical wires which conduct a…

A: m = 50 g = 50 x 10-3 kg L = 40 cm = 40 x 10-2 m I = 15.9 A B = 60 mT = 60 x 10-3 T T = ?

Q: A wire (mass = 50 g, length = 40 cm) is suspended horizontally by two vertical wires which conduct a…

A: Mass of the wire , M = 50 g = 0.05 kg Length , l = 40 cm = 0.4 m Current , I = 11.7 A Magnetic field…

Q: How much current must a long, straight wire carry in order for the magnetic field that it produces…

A: Write the expression for the magnetic field along a current carrying straight wire.

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.