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The Electrical Resistance of a Copper Wire Varies Directly with Its

Question 90

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The electrical resistance of a copper wire varies directly with its length and inversely with the square of the diameter of the wire. If a wire 20 m long with a diameter of 4 mm has a resistance of 35 The electrical resistance of a copper wire varies directly with its length and inversely with the square of the diameter of the wire. If a wire 20 m long with a diameter of 4 mm has a resistance of 35 , find the resistance of a wire 30 mm long with a diameter of 4.5 mm. Round your answer to two decimal places. A) 39.64 B) 40.26 C) 41.48 D) 42.35 , find the resistance of a wire 30 mm long with a diameter of 4.5 mm. Round your answer to two decimal places.


A) 39.64 The electrical resistance of a copper wire varies directly with its length and inversely with the square of the diameter of the wire. If a wire 20 m long with a diameter of 4 mm has a resistance of 35 , find the resistance of a wire 30 mm long with a diameter of 4.5 mm. Round your answer to two decimal places. A) 39.64 B) 40.26 C) 41.48 D) 42.35
B) 40.26 The electrical resistance of a copper wire varies directly with its length and inversely with the square of the diameter of the wire. If a wire 20 m long with a diameter of 4 mm has a resistance of 35 , find the resistance of a wire 30 mm long with a diameter of 4.5 mm. Round your answer to two decimal places. A) 39.64 B) 40.26 C) 41.48 D) 42.35
C) 41.48 The electrical resistance of a copper wire varies directly with its length and inversely with the square of the diameter of the wire. If a wire 20 m long with a diameter of 4 mm has a resistance of 35 , find the resistance of a wire 30 mm long with a diameter of 4.5 mm. Round your answer to two decimal places. A) 39.64 B) 40.26 C) 41.48 D) 42.35
D) 42.35 The electrical resistance of a copper wire varies directly with its length and inversely with the square of the diameter of the wire. If a wire 20 m long with a diameter of 4 mm has a resistance of 35 , find the resistance of a wire 30 mm long with a diameter of 4.5 mm. Round your answer to two decimal places. A) 39.64 B) 40.26 C) 41.48 D) 42.35

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