A conducting crossbar is in electrical contact with two vertical conducting wires and slides down those wires, pulled by gravity. The wires are connected with a 10 Ω resistor R to form a closed circuit as shown in the figure. The mass of the crossbar is 30 gm and its length ` between the vertical wires is 0.5 m. There is a horizontal magnetic field B = 1 Tesla perpendicular to the plane of the loop. a) What is the induced current needed to counterbalance the force of gravity? b) Indicate the direction the current is moving and why this is the direction. c) How fast will the crossbar be moving after the initial period of acceleration?

Q: YA a В b A conducting rod Jab| slides without friction on a conducting long enough parallel rails…

A: Given data, Length of the rod = 2 m Resistance of the resistor = 2 ohms Velocity of the rod is :-…

Q: . A rod of length 1 is rotated with angular speed o about its one end perpendicular to a magnetic…

A: We need to compute-Induced emf e=?The data given as-Length of rod=lAngular speed=ωMagnetic field=B

Q: A conducting crossbar is in electrical contact with two vertical conducting wires and slides down…

A: The current flow through the resistance is,

Q: (b)     FIGURE 4 shows a 0.8 m long metal bar being pulled to the right at a steady speed of 5.8…

A: Length of metal bar, L = 0.8 m  Speed, v = 5.8 m/s Magnetic field, B =  667 mT = 0.667 T…

Q: The conducting bar in the figure below is 0.1 m long and moves to the right with a speed of 10 m/s…

A: Length (L) = 0.1 m speed (v) = 10 msMagnetic field strength (B) = 1.5 T

Q: A perfectly conducting rod is being pulled to the right at constant speed along two perfectly…

A: The distance between the two rails is given as, d = 0.07 m Resistance of the resistor is given as, R…

Q: Figure 2 shows a top view of a bar (the resistor of the bar R2 = 5.00 Q) , that can slide on two…

A:

Q: A pair of parallel conducting rails that are separated by a distance d-0.2 m lies at a right angle…

A: Given:Distance between the conducting rails: d=0.2 mMagnetic field: B=0.8 TResistance of the…

Q: A metal rod of length 1 m is rotated about one of its ends in a plane at right angles to a uniform…

A: To find-Induced emf (e)=?Given-l=1 mB=2.5×10-3 Wb/m2n=1800 rpm=180060=30 rps

Q: A circular coil of wire with a radius of 0.28 m is exposed to magnetic field perpendicular to the…

A:

Q: Find the angle theta in degrees. g=9.8 m/s^2

A: Torque due to magnetic force:- T= R×F = R×i(L×B) = RiLBsinøsinα Where:- R= distance between magnetic…

Q: Anupright rectangular loop of height a and width b has a lightbulb attached to it, with some…

A: We are given magnetic field. We are given dimensions of rectangular loop. The loop is…

Q: ne so = 0.40w/s Razisn 3. A square coil of wire (36.0 cm long on each side with 50 loops) moves at a…

A: Given:length of 1 side of the coil, L = 0.36 mtotal loops, n = 50velocity of the coil, v = 0.40…

Q: How to determine the magnitude of the time changing magnetic flux thru the loop, if the EMF is…

A: It is given that

Q: circular loop of radius 5.1 cm is formed, placed with its plane perpendicular to a uniform magnetic…

A:

Q: A 0.79-m aluminum bar is held with its length parallel to the east-west direction and dropped from a…

A:

Q: A coil of wire consists of 20 turns each of which has an area of 0.0015 m². A magnetic field is…

A: The magnetic effect on moving  charges,  currents, and magnetic materials is represented by a…

Q: A moveable (massless and frictionless) bar with a length of L = 18/50 m is being moved at a constant…

A:

Q: A metal rod 1 m long rotates about one end in the plane perpendicular to a uniform magnetic field of…

A: Given : Length of the rod, l = 1 m Magnetic field induction, B = 0.38×10-4 Wb/m2 (or T) Because 1 T…

Q: The magnetic flux through a coil of wire changes from 9T m- to zero in a time of 0.50 s. What is the…

A: 18 V

Q: A 1.0 m long metallic rod is rotated with an angular frequency of 400 rad s about an axis normal to…

A: Given-Length of the rod, l= 1 mAngular frequency, ω=400 rad/sMagnetic field strength, B=0.5 T

Q: Calculate the magnetic induction, B, of a wire that carries a current of 100 amps, at a distance of…

A:

Q: A long rectangular conducting loop is hung in a uniform magnetic field B that is directed into the…

A: We know that emf induced in moving coil in magnetic field is given by  e=Bvl and current induced…

Q: (L11) A thin 0.120 m copper rod on the x-y plane and parallel to the x axis moves with a constant…

A:

Q: A rectangular conducting loop has sides a = 0.065 m, sides b = 0.15 m, and resistance R = 55 Ω. It…

A:

Q: D Question 3 2 pts In the figure, a wire and a 10 Q resistor are used to form a circuit in the shape…

A:

Q: Icoil formed by wrapping Go turns 4 wire in the Shape of a square is positioned in a magnetic field…

A: Given: The number of turns is 60.             The angle between normal to the plane of the coil and…

Q: A magnetic field of magnitude 0.360 T is oriented perpendicular to the plane of a circular loop.…

A: Write the given values with the suitable variables. B=0.360 Tϕ=2.10 Wb Here, B is the magnetic field…

Q: A conducting bar of length e moves to the right on two frictionless rails as shown in the figure…

A: # NOTE: Thank you for the question. As per the company honor code, we are allowed to answer up to…

Q: A metal rod of length 1 m is rotated about one of its ends in a plane at right angle to a uniform…

A:

Q: phy.1

A: The objective of the question is to find the magnitude of the magnetic field. The force required to…

Q: A uniform 1.07 T magnetic field passes through the plane of a wire loop 4.22 m2 in area. Calculate…

A: Magnetic field = B = 1.07 T Area of the loop = A = 4.22 m2 Angle between normal and the magnetic…

Q: A magnetic field of magnitude 0.500 T is oriented perpendicular to the plane of a circular loop.…

A: Given  magnetic field (B)=0.500 T flux =2.55 Wb radius doubled. Required  radius flux

Q: A straight conductor of length / moves with an acceleration a = 0.1 ms2 at the right angle to the…

A: Magnetic field ( B ) = 11.9 T Acceleration ( a ) = 0.1 ms-2   Time ( t ) = 20 s  Voltage ( V ) = 5 V

Q: An clectromagnetic scale consists of a small coil with N=220 turns mounted on one end of a balance…

A: Solution: The magnetic field due to the coil of 220 turns can be given as: B=μ0ni substitute the…

Q: A conducting rod slides over two horizontal metal bars with a constant speed v to the left. The…

A:

Q: As shown in the figure, a metal bar of length l= 0.25 m is free to slide on frictionless rails. A…

A:

Q: A circular coil of wire is composed of 600 turns, has a diameter of 30 cm, and with a 25 mA current…

A:

Q: A metal rod is pulled along two frictionless, conducting rails in a magnetic field. The rod and…

A: Answer               Yes, clockwise

Q: A magnetic field of magnitude 0.450 T is oriented perpendicular to the plane of a circular loop.…

A:

Q: A horizontal straight wire 10 m long extending from east to west iIs falling with a speed of 5.0 m…

A: Given data- Length of the wire, l=10 m Falling speed of the wire, v=5 m/s Magnetic field strength,…

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.