I am needing help on parts (i) and (j) please (11%) Problem 9: A circular coil comprised of N= 130 closely wrapped turns of wire and has a radius R= 0.45 m. A counterclockwise current I = 2.5 A is in the coil. The coil is set in a magnetic field ofmagnitude B = 1.4 T. The magnetic field points to right.Part (a) Express the magnetic dipole moment, in terms of the number of the turns N, the current I, and radius R.u=NITR² ✓ Correct!Part (b) Calculate the numerical value of u in SI units.μ-206.65= 206.7✓ Correct!Part (c) What is the vector direction of u?Upward. ✔ Correct!Part (g) What is the potential energy of the coil in the magnetic field, in terms of the variables provided?U=0 ✓ Correct!Part (h) If the magnetic field was pointing upward, express the potential energy of the coil in the magnetic field, U₁, in terms of u and B.U-B✔Correct!Part (i) Calculate the numerical value of U, in J.U₂ =Tu =BPart (j) What's the torque tu now?

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U₁= P Part (i) Calculate the numerical value of U,, in J. Part (j) What's the torque tu now? 11

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter29: Magnetic Fields

Section: Chapter Questions

Problem 29.12P: Review. A charged particle of mass 1.50 g is moving at a speed of 1.50 104 m/s. Suddenly, a uniform...

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Concept explainers

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.

Question

I am needing help on parts (i) and (j) please

(11%) Problem 9: A circular coil comprised of N= 130 closely wrapped turns of wire and has a radius R
= 0.45 m. A counterclockwise current I = 2.5 A is in the coil. The coil is set in a magnetic field of
magnitude B = 1.4 T. The magnetic field points to right.
Part (a) Express the magnetic dipole moment, in terms of the number of the turns N, the current I, and radius R.
u=NITR² ✓ Correct!
Part (b) Calculate the numerical value of u in SI units.
μ-206.65
= 206.7
✓ Correct!
Part (c) What is the vector direction of u?
Upward. ✔ Correct!
Part (g) What is the potential energy of the coil in the magnetic field, in terms of the variables provided?
U=0 ✓ Correct!
Part (h) If the magnetic field was pointing upward, express the potential energy of the coil in the magnetic field, U₁, in terms of u and B.
U-B✔Correct!
Part (i) Calculate the numerical value of U, in J.
U₂ =
Tu =
B
Part (j) What's the torque tu now?

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