A tungsten wire is used to determine the melting point of lead. A battery of 6.00 V is attached to the ends of this wire and a current of 2.000 A is measured at 20°C. The lead is heated until it starts to melt. The tungsten wire is placed in the environment of the melting lead and the current is measured to be 1.237 A using the same 6.0 V battery. What is the melting temperature of lead? XX Tungsten = 4.50 × 10-³ (°C)-¹. a. b. c. d. e. 132°C 157°C Comect 731°C 478°C 327°C

A tungsten wire is used to determine the melting point of lead. A battery of 6.00 V is attached to the ends of this wire and a current of 2.000 A is measured at 20°C. The lead is heated until it starts to melt. The tungsten wire is placed in the environment of the melting lead and the current is measured to be 1.237 A using the same 6.0 V battery. What is the melting temperature of lead? XX Tungsten = 4.50 × 10-³ (°C)-¹. a. b. c. d. e. 132°C 157°C Comect 731°C 478°C 327°C

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: Current And Direct Current Circuits

Section: Chapter Questions

Problem 9P

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