Calculate the resistance of 100 m length of a wire having a uniform cross-sectional area of 0.1 mm² if the wire is made of manganin having a resistivity of 50 x 10-8 Q-m. If the wire is drawn out to three times its original length, by how many times would you expect its resistance to be increased? [500 0; 9 times]

EBK ELECTRICAL WIRING RESIDENTIAL
19th Edition
ISBN:9781337516549
Author:Simmons
Publisher:Simmons
Chapter6: Ground-fault Circuit Interrupters, Arc-fault Circuit Interrupters, Surge Protective Devices, Immersion Detection Circuit Interrupters, And Appliance Leakage Current Interrupters
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Calculate the resistance of 100 m length of a wire having a uniform cross-sectional area of 0.1
mm² if the wire is made of manganin having a resistivity of 50 x 10- Q-m. If the wire is drawn out
to three times its original length, by how many times would you expect its resistance to be
increased?
[500 22; 9 times]
Transcribed Image Text:Calculate the resistance of 100 m length of a wire having a uniform cross-sectional area of 0.1 mm² if the wire is made of manganin having a resistivity of 50 x 10- Q-m. If the wire is drawn out to three times its original length, by how many times would you expect its resistance to be increased? [500 22; 9 times]
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