The loop configuration in the figure below consists of two semicircles of inner radius rin4.5 cm and outer radius rout2 rin carrying a current 12=8 A. Calculate the magnetic field at point P (at the center of the semicircles). Express your answer in terms of Ho: using into the page as (-) direction and out of the page as (+) direction; hence enter a (-) sign for negative answers. Round your results to one decimal place. 12 Tout Tịn,

Q: A student makes a short electromagnet by winding 420 turns of wire around a wooden cylinder of…

A:

Q: O In the hque, a= 2om, b- 4 cm, ard 1=24 Take the unt vector Br X axis to 1o fight of page, the one…

A:

Q: In figure at the right, a negatively charged particle of mass 5.01 × 10^-27 kg and charge -3.20…

A:

Q: Determine the direction of the vector ū, B , or F that is missing from the pair of vectors shown in…

A: Solution: Given: Here six pictures are given in the statement of question. Each picture describes a…

Q: 11. Two long, straight wires are separated by distance, d = 23.0 cm. The wires carry currents of I₁…

A:

Q: The figure shows, in cross section, two long parallel wires that are separated by distance d=18.6…

A:

Q: Two long straight wires carry currents of 2.5 A nto the page, as shown in the diagram. f distance d…

A:

Q: Determine the direction of the vector i, B , or ř that is missing from the pair of vectors shown in…

A: Direction of magnetic force according RHR(Right Hand Rule) -

Q: A current of 21.0 mA is maintained in a single circular loop of 1.40 m circumference. A magnetic…

A:

Q: using the apparatus illustrated below, as we already discussed a few times. We are now ready to…

A: Given, A Thompson experiment A beam of negatively charged particles with charge q and mass m is…

Q: Write down an expression for the electromotive force ɛ generated between the ends of straight…

A: When any conductor is moving in magnetic field. Then, in that case an emf is generated between the…

Q: An ?=45.0 cm wire is moving to the right at a speed of ?=7.90 m/s across two parallel wire rails…

A:

Q: 3. An electron travels with a velocity of 1.00x10°m/s[E]. The electron enters a research building…

A: Given that  Magnetic filed, B= 55 T  Velocity ,v= 105m/s

Q: A round loop of wire carries a current of 100 A, has a radius of 10 cm, and its normal (vector)…

A: Given,  I = 100 A  r = 10 cm  Θ = 30°  B = 0.284 T  N = 1  As we know that the torque in a round…

Q: A long solenoid with 13.1 turns/cm and a radius of 10.2 cm carries a current of 29.9 mA. A current…

A: (b) Expression of the magnetic field inside the solenoid: Bs=μ0nI Substitute the values.…

Q: A large parallel-plate capacitor with uniform surface charge o on the upper plate and-o on the lower…

A:

Q: If pictures are not clear: Two wires each carry 10.0 A of current (in opposite directions) and are…

A:

Q: Iwo concentric, circular wire loops of radii r1 = 17.8 cm and ľ2= 27.8 cm, are located in an xy…

A:

Q: The z = 0 plane carries a current K = 102 [A/m] while a wire carrying a current I along the…

A:

Q: Suppose that there is a magnetic field B Cartesian coordinate system with ê x ŷ = î. For all the…

A: Have a look dear

Q: In the figure below, two circular arcs have radii a = 13.8 cm and b = 11.0 cm, subtend angle θ =…

A:

Q: A proton is going 749 m/s when it is exposed to a 76 T magnetic field (see below) and begins moving…

A:

Q: It's urgent please solve asap

A: Magnetic field.

Q: The figure shows the initial velocities of four identical positively charged particles in a uniform…

A: According to Lorentz force law in magnetic field Force F→ acting on charged particle q moving with…

Q: An alpha particle moving horizontally at 7.1 x 104 m/s moves above of the end of an electromagnet…

A:

Q: If the radius of the semi circle is 3cm, the current in the left most wire is 2A, and the right most…

A: Current in the left most wire = i = 2 A. Radius = R = 0.03 m Magnetic field due to Semicircular wire…

Q: Consider a thin current-carrying wire as shown in the figure on the left. The wire carries a current…

A:

Q: If length ofthe arc is 20 cm, radius R=8 cm and a current through aloop I=20 A, what is the…

A: Given, L=20cm=.2m R=8cm=.08m I=20A Now for an arc Magnetic field at the center is φ is the angle…

Q: A 3.85 kg box is suspended from a system of massless wires attached to a ceiling. The first wire…

A:

Ising model of Ferromagnets

The Ising model is one of the easiest and most famous theoretical models for ferromagnetism in statistical mechanics. When a group of atomic spins aligns such that their magnetic moments are pointed in the same direction and produce a strong permanent magnetic moment in macroscopic size, the phenomenon is called ferromagnetism. The relative permeability of these magnets is greater than unity and increasing magnetization with the applied external field. Even in the absence of an external magnetic field, these substances retain spontaneous magnetization. An example of ferromagnets is iron.