A short bar magnet produces a magnetic induction of 4 x 10 tesla at an axial point 10 cm from its center. Find the dipole moment = 4% X 10 wb/Am) of the magnet (Ho
Q: A student makes a short electromagnet by winding 480 turns of wire around a wooden cylinder of…
A: Given: The windings is wire is N=480 turns. The diameter of the cylinder is d=2.3 cm. The current…
Q: A student makes a short electromagnet by winding 430 turns of wire around a wooden cylinder of…
A:
Q: A student makes a short electromagnet by winding 330 turns of wire around a wooden cylinder of…
A: Given, The number of turns, N=330 The diameter of the wooden cylinder, d=4.0 cm=0.04 m Radius,…
Q: A flat 15 cm x 15 cm square coil has 30 turns and sits in the xy-plane. It carries a 33 A curret…
A: Step 1: Step 2: Step 3: Step 4:
Q: A circular coil with 232 turns has a radius of 2.4 cm. (a) What current through the coil results in…
A:
Q: The figure gives the potential energy U of a magnetic dipole in an external magnetic field B, as a…
A:
Q: A certain superconducting magnet in the form of a solenoid of length 0.42 m can generate a magnetic…
A:
Q: A student makes a short electromagnet by winding 480 turns of wire around a wooden cylinder of…
A: (a) The magnetic dipole moment of coil of wire with number of turns n with area A having a current I…
Q: A coil with a circular cross section having an area of 40cm2 has 40turns. When the coil is placed…
A: Given: A coil with a circular cross-section having an area(A)=40cm2 =40x10-6m2 Turns(N)=40 Magnetic…
Q: A bar magnet of magnetic moment 1.5 J T-1 lies aligned with the direction of a uniform magnetic…
A: Given, Magnetic moment (m) 1.5JT-1 Magnetic field (B) 0.22 T We know,
Q: ne orientation of small satellites is often controlled using torque from current-carrying coils in…
A: Area of cross section = A = 6.46 X 10-4 m2 Power = P = 0.4 W voltage = V = 6.5 V magnetic moment =…
Q: A short bar magnet placed with its axis at 30° with an external field of 800 G experiences a torque…
A:
Q: A current of 19.0 mA is maintained in a single circular loop of 2.60 m circumference. A magnetic…
A: The magnetic moment of circular loop is given as m=nIA…
Q: A strip of copper is placed in a uniform magnetic field of magnitude 2.5 T. The Hall electric field…
A: Given data: Hall electric field, Magnetic field, B = 2.5 T Number of electrons, Cross-sectional…
Q: A certain superconducting magnet in the form of a solenoid of length 0.500 m can generate a magnetic…
A:
Q: A student makes a short electromagnet by winding 390 turns of wire around a wooden cylinder of…
A: (a) The magnetic dipole moment of coil of wire with number of turns n with area A having a current I…
Q: A bar magnet of length 10 cm and magnetic moment 0.8 Am² is placed in a uniform magnetic field of…
A: Length of bar magnet, L = 10 cmMagnetic moment, M = 0.8 Am2Uniform magnetic field strength, B = 0.5…
Q: A certain superconducting magnet in the form of a solenoid of length 0.30 m can generate a magnetic…
A: Given data: The length of solenoid is L=0.3 m. Magnetic field is B=10 T. Current carried I=80 A.…
![A short bar magnet produces a magnetic
induction of 4 × 10 tesla at an axial point
10 cm from its center. Find the dipole moment
-7-
of the magnet ( Po
= 47 x 10 wb/Am)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff045bcba-f4b7-4baa-a2fc-3b2331eda841%2F873cce66-8f18-41f3-baf4-462b063921c5%2Fgyusnynm_processed.jpeg&w=3840&q=75)
![](/static/compass_v2/shared-icons/check-mark.png)
Step by step
Solved in 2 steps with 2 images
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
- A certain superconducting magnet in the form of a solenoid of length 0.350 m can generate a magnetic field of 9.10 T in its core when its coils carry a current of 145 A. Find the number of turns in the solenoid. turnsA 292 turn circular coil of diameter 54 cm is placed in the earth's magnetic field 0.42 G, such that its magnetic dipole moment makes an angle 31° with the field as shown in the picture. If the current in the circular coil is 120 A, then calculate the following: a) The magnetic dipole moment of the coil in Am? = b) The torque on the current loop measured in Nm = c) The potential energy of the current loop in joules = olProblem 10: A magnetic needle with magnetic moment μ-0.065 Am2 is placed in a uniform magnetic field B0.65 T as shown in the figure. The angle between the direction of the magnetic moment and the direction of the magnetic field is θ 250 Randomized Variables μ= 0.065 Arn B- 0.65T θ 250 Δ Part (a) Express the potential energy U in terms oft, B, θ. | cos(p) sin(p) | cos(α) sin(a) cos(0) sin(0) ( HOMI 4 5 6 BACKSPACE CLEAR Submit Hint I give up! Hints: 1% deduction per hint. Hints remaining: 1 Feedback: 1% deduction per feedback. Part (b) Calculate the numerical value of U in J. Part (c) If θ can be changed, which value has the minimum potential energy? Part (d) If θ can be changed, which value has the maximum potential energy in degrees? Δ Part (e) Ignore the mass of the needle, express the work needed to change the angle from θ to α in terms oftı, B, θ, α Part (f) If α-1500, calculate the numerical value of the work in J.
- A student makes a short electromagnet by winding 390 turns of wire around a wooden cylinder of diameter d = 4.1 cm. The coil is connected to a battery producing a current of 4.1A in the wire. (a) What is the magnitude of the magnetic dipole moment of this device? (b) At what axial distance z>> dwill the magnetic field have the magnitude 4.8 µT (approximately one-tenth that of Earth's magnetic field)? (a) Number i Units (b) Number i UnitsA circular coil of 205 turns has a radius of 1.84 cm. (a) Calculate the current that results in a magnetic dipole moment of magnitude 3.44 A-m2. (b) Find the maximum magnitude of the torque that the coil, carrying this current, can experience in a uniform 46.8 mT magnetic field. (a) Number Units (b) Number UnitsConsider a circular current-carrying coil with a radius of 2.5 cm and 150 turns that may rotate about an axis through its center. The coil is in a uniform, 1.6-T magnetic field. The current in the coil is 0.65 A. What will the torque on the coil be when the angle ϕ between the vector normal to the plane of the coil and the magnetic field is oriented so that the torque is one-half of its maximum value?
- The Hall effect can be used to determine the density of mobile electrons in a conductor. A thin strip of the material being investigated is immersed in a magnetic field and oriented so that its surface is perpendicular to the field. In a particular measurement, the magnetic field strength was 0.735 T, the strip was 0.101 mm thick, the current along the strip was 2.95 A, and the Hall voltage between the strip's edges was 2.95 mV. Find the density n of mobile electrons in the material. The elementary charge is 1.602 x 10-19 C. 1.56 x104 n 3= -3 IncorrectA circular coil has moment of inertia 0.8 kg m2 around any diameter and is carrying current to produce a magnetic moment of 20 Am2. The coil is kept initially in a vertical position and it can rotate freely around a horizontal diameter. When a uniform magnetic field of 4 T is applied along the vertical, it starts rotating around its horizontal diameter. The angular speed the coil acquires after rotating by 60° will be:A student makes a short electromagnet by winding 530 turns of wire around a wooden cylinder of diameter d = 4.4 cm. The coil is connected to a battery producing a current of 4.1 A in the wire. (a) What is the magnitude of the magnetic dipole moment of this device? (b) At what axial distance z >> d will the magnetic field have the magnitude 6.7 µT (approximately one-tenth that of Earth's magnetic field)?
- QUESTION 5 a) A magnetic circuit consists of a toroidal silicon sheet steel with relative permeability 4, of 150, and a small air gap. A current I flows through 200 turns of wire wrapped around the toroid. The magnetic flux of the circuit is 5 x 10-9 Wb. The total length of the circuit is 0.8 m, and the cross-sectional area of the toroid is10-*m². The length of the air gap is 0.07 m. Find i. The total reluctance and inductance of the circuit ii. Magnetomotive force and hence the current. Ho = 4n x 10-7 H/m b) Differentiate between faraday law of electromagnetic induction and Lenz law and discuss their practical importance c) Using stokes theorem, prove that the divergence of curl of a vector is zeroThe density of charge carriers for copper is 8.47 × 1028 electrons per cubic meter. What will be the Hall voltage reading from a probe made up of 3 cm × 2 cm × 1 cm (L × W × T) copper plate when a current of 1.5 A is passed through it in a magnetic field of 2.5 T perpendicular to the 3 cm × 2 cm.A certain superconducting magnet in the form of a solenoid of length 0.490 m can generate a magnetic field of 9.20 T in its core when its coils carry a current of 80 A. Find the number of turns in the solenoid.