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A Straight Wire of Length Is Oriented East-West and Is

Question 28

Multiple Choice

A straight wire of length A straight wire of length   is oriented east-west and is in a magnetic field B pointing north.The wire is moving downward at a constant speed v.If the resistance of the rod is R,what is the current through the rod? A) R/B   v B) B   v/R C) B<sup>2</sup> <sup> </sup>   <sup>2</sup>v<sup>2</sup>/R<sup>2</sup> D) not given is oriented east-west and is in a magnetic field B pointing north.The wire is moving downward at a constant speed v.If the resistance of the rod is R,what is the current through the rod?


A) R/B A straight wire of length   is oriented east-west and is in a magnetic field B pointing north.The wire is moving downward at a constant speed v.If the resistance of the rod is R,what is the current through the rod? A) R/B   v B) B   v/R C) B<sup>2</sup> <sup> </sup>   <sup>2</sup>v<sup>2</sup>/R<sup>2</sup> D) not given v
B) B A straight wire of length   is oriented east-west and is in a magnetic field B pointing north.The wire is moving downward at a constant speed v.If the resistance of the rod is R,what is the current through the rod? A) R/B   v B) B   v/R C) B<sup>2</sup> <sup> </sup>   <sup>2</sup>v<sup>2</sup>/R<sup>2</sup> D) not given v/R
C) B2 A straight wire of length   is oriented east-west and is in a magnetic field B pointing north.The wire is moving downward at a constant speed v.If the resistance of the rod is R,what is the current through the rod? A) R/B   v B) B   v/R C) B<sup>2</sup> <sup> </sup>   <sup>2</sup>v<sup>2</sup>/R<sup>2</sup> D) not given 2v2/R2
D) not given

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