A precision laboratory resistor is made of a coil of wire. The coil is 1.6 cm in diameter, 3.75 cm long, and has 500 turns. Part (a) What is its self-inductance in millihenries? Part (b) What average emf in volts is induced if a 12.0 A current through it is turned on in 5.00 ms (one-fourth of a cycle for 50 Hz AC)? Part (c) What is its inductance in millihenries if it is shortened to half its length and its 500 turns are counter-wound (wound as two oppositely-directed layers of 250 turns each)?
A precision laboratory resistor is made of a coil of wire. The coil is 1.6 cm in diameter, 3.75 cm long, and has 500 turns. Part (a) What is its self-inductance in millihenries? Part (b) What average emf in volts is induced if a 12.0 A current through it is turned on in 5.00 ms (one-fourth of a cycle for 50 Hz AC)? Part (c) What is its inductance in millihenries if it is shortened to half its length and its 500 turns are counter-wound (wound as two oppositely-directed layers of 250 turns each)?
College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter23: Electromagnetic Induction, Ac Circuits, And Electrical Technologies
Section: Chapter Questions
Problem 63PE: A precision laboratory resistor is made of a coil of wire 1.50 cm in diameter and 4.00 cm long, and...
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Problem 5: A precision laboratory resistor is made of a coil of wire. The coil is 1.6 cm in diameter, 3.75 cm long, and has 500 turns.
Part (a) What is its self-inductance in millihenries? Part (b) What average emf in volts is induced if a 12.0 A current through it is turned on in 5.00 ms (one-fourth of a cycle for 50 Hz AC)? |
Part (c) What is its inductance in millihenries if it is shortened to half its length and its 500 turns are counter-wound (wound as two oppositely-directed layers of 250 turns each)? |
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