With a piece of wire, whose electrical resistance is 5Ω, a circular loop with an area of ​​1m2 is made. Then the loop to the plane is in a magnetic field, perpendicular to the loop. Knowing that the intensity of the magnetic field decreases at the rate of 0.2T per second, we can say that the electric current flowing through the loop is:

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: 14. A solenoid with 8000 turns produces a magnetic field of 0.4T in its center when a current of 12A…

A:

Q: Magnetic resonance imaging (MRI) is a medical technique for producing “pictures” of the interior of…

A: The given values are, A=0.032 m2Bi=1.5 TBf=0                      for vanish the fieldε=0.010 V

Q: You travel to the north magnetic pole of the Earth, where themagnetic field points vertically…

A: B→.dl→=B×dl×cos90°=0B→.dl→=0 Magnetic field and dl are perpendicular so there line integral will be…

Q: If the magnetic field 1.50 cm from a straight wire in air is 2.00 mT, how much current, in amperes…

A:

Q: constant electric flux of 1800 Volt-meters passes through the center of a loop of wire whose…

A:

Q: 6. In a standard lecture demonstration, a loop of wire, with radius a and resistance R, levitates…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

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: wire loop with a resistance of 2.5 ohms and a radius of 0.255m is places in a magnetic field that…

A: Given resistance of wire = 2.5 ohms radius of wire =  0.255 m  B(t)=0.25e^(-.5t) We have to…

Q: A bar of iron is said to be saturated once most of its magnectic molecular are aligned whereby…

A: 1) FALSE , saturation is the state where increasing the magnetomotive force stops affecting the…

Q: A circular wire loop is placed in a uniform magnetic field region such that its plane is…

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 current wire of length 73 cm placed in a magnetic field of 1.51 T such that it makes an angle 46…

A: Length of wire (L) = 73 cm = 0.73 m Magnetic field (B) = 1.51 T Angle (θ) = 46oForce (F) = 2.04 N

Q: What is the magnetic induction at the Yentre of a T.G. coil of 50 turns of average radius 10 cm,…

A: We have given Number of turns N = 50  Radius r = 10 cm               r = 0.1 m  Current i = 0.35 A…

Q: The circular loop with a radius of 12cm seen in the figure is in a uniform magnetic field of 0.15T…

A: The circular loop initially has a radius of 12 cm, thus a diameter of 24 cm and is kept in a 0.15 T…

Q: A football quarterback, to obtain good grades while strengthening his throwing arm, is asked to…

A: when a coil of N turn is rotated in a magnetic field then EMF generated in the coil is expressed as…

Q: An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…

A:

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

A:

Q: A square loop of side 2 meters is located on the xy plane. The loop has total resistance R= 8N.…

A:

Q: Tthe length of a moving conductor L=0.25m (you may assume that this is the distance from “rail to…

A: Given that:- Length of moving conductor=L=0.25m

Q: A wire of resistance 0.50 ohms forms a loop of area 7.85*10^5 m^2, andthen is placed in a uniform…

A:

Q: A velocity selector in a mass spectrometer uses a 0.13 T magnetic field. (a) What electric field…

A:

Q: A loop of wire initially oriented perpendicular to a magnetic field is 1.5 T. if is then rotated…

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) An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…

A: a) The Faraday’s and Lenz’s Law, The magnetic flux,

Q: Calculate the Hall voltage on a strip of wire that has a width of 3.5 μm if the magnetic field is…

A:

Q: A sod of length l is suotated with angulan. speed co abdut ils one end perpendicular magnelic field…

A:

Q: (0,0,a) (-a,0,01 (a,0,0) As can be seen from the above, I-10 (A] current comes from infinity to…

A: Biot Savat law is an equation describing the field generated by a constant electric current. It…

Q: A flashlight can be made that is powered by the inducedcurrent from a magnet moving through a coil…

A:

Q: an T.G. a deflection of us, is obtained when a current of 173 mA is passed through it. The…

A: We need to compute the current through T.G. (I2)=?Given that-Initial deflection (θ1)=450New…

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

A:

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 coil formed by wrapping 80 turns of wire in the shape of asquare is positioned in a magnetic field…

A: Given,

Ferromagnetism

Ferromagnetism is a mechanism by which some materials show magnetic properties. Iron and magnetite, an oxide of iron, are two naturally occurring materials that show the property of ferromagnetism. The word ferromagnetism is derived from the Latin name of iron, "Ferrum" as it was the first observed material to show such property. The property of ferromagnetism is shown by only a few substances such as iron, nickel, cobalt, and their alloys. Some transition metals and alloys of rare-earth metals also show ferromagnetism.