Answered: The cable carries a current I, which… | bartleby

Related questions

Question

The cable carries a current I, which flows clockwise. Use Ampere’s Law to calculate the
magnetic field B at r < a, a < r < b, and r > b.

Calculate the Poynting vector S in the cable.

R
a
ww

Expert Solution

Step by step

Solved in 5 steps

SEE SOLUTION Check out a sample Q&A here

Blurred answer

Similar questions

Shown in the figure is a closed wire loop. The loop consists of a straight section and a semicircular section of radius 50 cm. The loop (as drawn) is parallel to the plane 3x+4y =7 and carries a current of 38.2 mA counter-clockwise. The loop sits in free space, inside of a magnetic field intensity of 1194 âx + 2388 ŷ A/m . Determine the torque on the loop, and if the loop is free to move, describe the direction(s) in which it moves.
An aircraft, of wing span 31.1 m, flies horizontally at a speed of 900 km/h. If the angle of dip of the magnetic field lines of the Earth is 64 degrees with respect to the Earth surface, calculate the emf induced between the tips of the wings. Take the value of the horizontal component of the magnetic field of the Earth ?=2×10−5B=2×10−5 T. Please remember to select the correct units.
A certain commercial mass spectrometer is used to separate uranium ions of mass 3.92 × 10-25 kg and charge 3.20 × 10-¹⁹ C from related species. The ions are accelerated through a potential difference of 122 kV and then pass into a uniform magnetic field, where they are bent in a path of radius 1.03 m. After traveling through 180° and passing through a slit of width 0.923 mm and height 1.19 cm, they are collected in a cup. (a) What is the magnitude of the (perpendicular) magnetic field in the separator? If the machine is used to separate out 1.17 mg of material per hour, calculate (b) the current of the desired ions in the machine and (c) the thermal energy produced in the cup in 1.15 h. (a) Number i (b) Number (c) Number MO i Units Units Units -Detector
A ring of radius r = 0.24 m is made of copper wire (cross-sectional area of the wire A = 0.65 x 10-6m²). The ring is placed in a uniform magnetic field whose direction is perpendicular to the page, into the page. The magnetic field increases in time according to the equation: B = 3.0t, where B is in teslas and time is in seconds. Determine the magnitude and direction of the induced current in the copper ring at room temperature (20°C) and at -200°C. Resistivity for copper is p = 1.69 x 10-® Nm and the temperature coefficient of resistivity for copper is a = 3.86 x 10-3 хх x x X X x X хх
The current I through a long solenoid with n turns per meter and radius R is changing with time as given by dI/dt. Calculate the induced electric field as a function of distance r from the central axis of the solenoid.
Extremely large magnetic fields can be produced using a procedure called flux compression. A metallic cylinder tube of radius R is placed coaxially in a long solenoid of slightly larger radius. The space between the solenoid and the tube is filled with a highly explosive material. When the explosive is detonated, it causes the tube to implode into a cylinder of radius r < R. If the implosion happens too quickly, the current induced in the tube maintains an almost constant magnetic flux within it. If the initial magnetic field on the solenoid is 2.50 T and R/r = 12.0, what is the maximum value that the magnetic field can reach? (Answer in T and up to the units house)
Problem 4: Displacement currents. A planar capacitor has two circular plates with equal radii R separated by a distance h. A dielectric cylinder of a smaller radius r 2 at.
An infinite length line carries current I in the +az direction on the z-axis, and this is surrounded by an infinite length cylindrical shell (centered about the z-axis) of radius a carrying the return current I in the -az direction as a surface current. Find expressions for the magnetic field intensity everywhere. If the current is 1.0 A and the radius a is 2.0 cm, plot the magnitude of H versus radial distance from the z-axis from 0.1 cm to 4 cm.
You want to build a very strong electromagnetic for your home. You have 13 Ampere power supply, a lot of wire, and a 12.4 cm long solenoid. How many turns of that wire are you going to wind on that solenoid to make a 0.307 Tesla field? Assume an ideal solenoid and that your wire will not be damaged by your current.