Problem 7.17 A long solenoid of radius a, carrying n turns per unit length, is looped by a wire with resistance R, as shown in Fig. 7.28. W R FIGURE 7.28 15 This is not at all the way electric fields actually behave in coaxial cables, for reasons suggested in the previous footnote. See Sect. 9.5.3, or J. G. Cherveniak, Am. J. Phys., 54, 946 (1986), for a more realistic treatment. 7.2 Electromagnetic Induction 321 (a) If the current in the solenoid is increasing at a constant rate (dI/dt = k), what current flows in the loop, and which way (left or right) does it pass through the resistor? (b) If the current I in the solenoid is constant but the solenoid is pulled out of the loop (toward the left, to a place far from the loop), what total charge passes through the resistor?
Problem 7.17 A long solenoid of radius a, carrying n turns per unit length, is looped by a wire with resistance R, as shown in Fig. 7.28. W R FIGURE 7.28 15 This is not at all the way electric fields actually behave in coaxial cables, for reasons suggested in the previous footnote. See Sect. 9.5.3, or J. G. Cherveniak, Am. J. Phys., 54, 946 (1986), for a more realistic treatment. 7.2 Electromagnetic Induction 321 (a) If the current in the solenoid is increasing at a constant rate (dI/dt = k), what current flows in the loop, and which way (left or right) does it pass through the resistor? (b) If the current I in the solenoid is constant but the solenoid is pulled out of the loop (toward the left, to a place far from the loop), what total charge passes through the resistor?
Chapter5: Electric Charges And Fields
Section: Chapter Questions
Problem 5.4CYU: Check Your Understanding How would the strategy change to calculate the at a point a distance z...
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Transcribed Image Text:Problem 7.17 A long solenoid of radius a, carrying n turns per unit length, is looped
by a wire with resistance R, as shown in Fig. 7.28.
W
R
FIGURE 7.28
15 This is not at all the way electric fields actually behave in coaxial cables, for reasons suggested in
the previous footnote. See Sect. 9.5.3, or J. G. Cherveniak, Am. J. Phys., 54, 946 (1986), for a more
realistic treatment.
7.2 Electromagnetic Induction
321
(a) If the current in the solenoid is increasing at a constant rate (dI/dt = k), what
current flows in the loop, and which way (left or right) does it pass through the
resistor?
(b) If the current I in the solenoid is constant but the solenoid is pulled out of the
loop (toward the left, to a place far from the loop), what total charge passes
through the resistor?
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