Giancoli 7th Edition textbook cover
Giancoli's Physics: Principles with Applications, 7th Edition
20

20-3: Force on Electric Current in Magnetic Field
20-4: Force on Charge Moving in Magnetic Field
20-5 and 20-6: Magnetic Field of Straight Wire, Force between Two Wires
20-7: Solenoids and Electromagnets
20-8: Ampère's Law
20-9 and 20-10: Torque on Curent Loop, Motors, Galvanometers
20-11: Mass Spectrometer
20-12: Ferromagnetism, Hysteresis

Question by Giancoli, Douglas C., Physics: Principles with Applications, 7th Ed., ©2014, Reprinted by permission of Pearson Education Inc., New York.
Problem 51
Q

A single square loop of wire 22.0 cm on a side is placed with its face parallel to the magnetic field as in Fig. 20–34b. When 5.70 A flows in the coil, the torque on it is 0.325 mN0.325 \textrm{ m}\cdot\textrm{N}. What is the magnetic field strength?

Calculating the torque on a current loop in a magnetic field B. (b) top view.
Figure 20-34 Calculating the torque on a current loop in a magnetic field B. (b) top view.
A
1.18 T1.18 \textrm{ T}
Giancoli 7th Edition, Chapter 20, Problem 51 solution video poster
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