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14.1 Exercise 9

Avg difficulty 2.5

A coil of 40 turns is wrapped around a long solenoid of cross-sectional area 7.5×10−3m2.7.5 \times 10^{−3} \text{m}^{2} . The solenoid is 0.50 m long and has 500 turns. (a) What is the mutual inductance of this system? (b) The outer coil is replaced by a coil of 40 turns whose radius is three times that of the solenoid. What is the mutual inductance of this configuration?

OpenStax University Physics Volume 2, 14.1 Mutual Inductance, exercise 9

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Adapted from University Physics Volume 2 © 2016 Rice University. Licensed under CC BY 4.0. Source: University Physics Volume 2. Imported at revision db44eb9.