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An 820 turn wire coil of resistance 28.0 2 is placed around a 12500 turn solenoid, 7.60 cm long, as shown in the figure below. Both coil and solenoid have cross-sectional areas of 1.20 x 10-4 m². 60.0 V 14.0 Ω W 12 500 turns Rc 820 turns (a) How long does it take the solenoid current to reach 63.2% of its maximum value? 22.1 ms (b) Determine the average back emf caused by the self-inductance of the solenoid during this interval. 38 V A (c) Determine the average rate of change in magnetic flux through the coil during this interval. X Your response differs from the correct answer by more than 10%. Double check your calculations. V (d) Determine the magnitude of the average induced current in the coil.

An 820 turn wire coil of resistance 28.0 2 is placed around a 12500 turn solenoid, 7.60 cm long, as shown in the figure below. Both coil and solenoid have cross-sectional areas of 1.20 x 10-4 m². 60.0 V 14.0 Ω W 12 500 turns Rc 820 turns (a) How long does it take the solenoid current to reach 63.2% of its maximum value? 22.1 ms (b) Determine the average back emf caused by the self-inductance of the solenoid during this interval. 38 V A (c) Determine the average rate of change in magnetic flux through the coil during this interval. X Your response differs from the correct answer by more than 10%. Double check your calculations. V (d) Determine the magnitude of the average induced current in the coil.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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An 820 turn wire coil of resistance 28.00 is placed around a 12500 turn solenoid, 7.60 cm long, as shown in the figure below. Both coil and solenoid have cross-sectional areas of 1.20 x 10-4 m². 14.0 Ω 60.0 V 12 500 turns Rc 820 turns (a) How long does it take the solenoid current to reach 63.2% of its maximum value? 22.1 ms (b) Determine the average back emf caused by the self-inductance of the solenoid during this interval. 38 V (c) Determine the average rate of change in magnetic flux through the coil during this interval. X Your response differs from the correct answer by more than 10%. Double check your calculations. V A (d) Determine the magnitude of the average induced current in the coil.
Transcribed Image Text:An 820 turn wire coil of resistance 28.00 is placed around a 12500 turn solenoid, 7.60 cm long, as shown in the figure below. Both coil and solenoid have cross-sectional areas of 1.20 x 10-4 m². 14.0 Ω 60.0 V 12 500 turns Rc 820 turns (a) How long does it take the solenoid current to reach 63.2% of its maximum value? 22.1 ms (b) Determine the average back emf caused by the self-inductance of the solenoid during this interval. 38 V (c) Determine the average rate of change in magnetic flux through the coil during this interval. X Your response differs from the correct answer by more than 10%. Double check your calculations. V A (d) Determine the magnitude of the average induced current in the coil.
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