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Physics / Physics: Principles with Applications 6 / Chapter 20 / Problem 59PE

Physics: Principles with Applications | 6th Edition | ISBN: 9780130606204 | Authors: Douglas C. Giancoli

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PE Integrated Concepts Cold vaporizers pass a current

Chapter 15, Problem 59PE

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QUESTION:

PE Integrated Concepts Cold vaporizers pass a current through water, evaporating it with only a small increase in temperature. One such home device is rated at 3.50 A and utilizes 120 V AC with 95.0% efficiency. (a) What is the vaporization rate in grams per minute? (b) How much water must you put into the vaporizer for 8.00 h of overnight operation? (See Figure 20.42.)

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QUESTION:

PE Integrated Concepts Cold vaporizers pass a current through water, evaporating it with only a small increase in temperature. One such home device is rated at 3.50 A and utilizes 120 V AC with 95.0% efficiency. (a) What is the vaporization rate in grams per minute? (b) How much water must you put into the vaporizer for 8.00 h of overnight operation? (See Figure 20.42.)

ANSWER:

Step-by-step solution Given : Current= 3.50 A Voltage =120 V AC Efficiency of the engine= 95.0% efficiency. Calculate : Vaporization rate in grams per minute.= How much water must you put into the vaporizer for 8.00 h = Step 1 of 4 The rate at which energy is produced through a current carrying element is given by equation (1) as below P= IV………………..(1) Here, I is the current and V is the voltage supplied.

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