Mindtap Electrical, 4 Terms (24 Months) Printed Access Card For Herman's Delmar's Standard Textbook Of Electricity, 6th (mindtap Course List)
6th Edition
ISBN: 9781305634312
Author: Herman, Stephen L.
Publisher: Cengage Learning
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Chapter 10, Problem 1RQ
To what is the turning force of a d’Arsonval meter movement proportional?
Expert Solution & Answer
To determine
The quantity to which the turning force of a d’Arsonval meter movement proportional to?
Answer to Problem 1RQ
The turning force of a d’Arsonval meter movement is proportional to the strength of the magnetic field developed in the current carrying coil.
Explanation of Solution
Description:
The underlying principle behind operation of the d’Arsonval meter movementis that like magnetic poles repel each other. The turning force of depends on the repulsion of magnetic fields. A magnetic field is created around the coilas current passes through it.
The flow of current is such that the polarity of the permanent magnet and that of the magnetic pole created around the coil is the same. As like magnetic poles repel each other, the coil is deflected away from the pole of the magnet. A spring provides the damping movement to the turning of the coil. The turning distance against the spring is proportional to the strength of the magnetic field developed in the current carrying coil.
Conclusion:
The quantity on which the turning force of a d’Arsonval meter movement is dependant has been explained.
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Chapter 10 Solutions
Mindtap Electrical, 4 Terms (24 Months) Printed Access Card For Herman's Delmar's Standard Textbook Of Electricity, 6th (mindtap Course List)
Ch. 10 - To what is the turning force of a dArsonval meter...Ch. 10 - Prob. 2RQCh. 10 - A DC voltmeter has a resistance of 20,000 per...Ch. 10 - 4. What is the purpose of an ammeter shunt?
Ch. 10 - 5. Name two methods used to make a DC multirange...Ch. 10 - 6. How is an ammeter connected into a circuit?
Ch. 10 - 7. How is a voltmeter connected into a circuit?
Ch. 10 - 8. An ammeter shunt has a voltage drop of 50 mV...Ch. 10 - 9. What type of meter contains its own separate...Ch. 10 - 10. What electrical quantity does the oscilloscope...
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