The input power to operate a boiler comes from an electrical circuit with a voltage of 110 volts [ V ] and a resistance of 3 ohms [ Ω ]. The boiler produces 70 kilojoules of heat per minute [ k J m i n ] . What is the efficiency of the boiler, expressed as a percentage [ % ] ?

The input power to operate a boiler comes from an electrical circuit with a voltage of 110 volts [ V ] and a resistance of 3 ohms [ Ω ]. The boiler produces 70 kilojoules of heat per minute [ k J m i n ] . What is the efficiency of the boiler, expressed as a percentage [ % ] ?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter4: The Second Law Of Thermodynamics

Section: Chapter Questions

Problem 28P: A coal power plant consumes 100,000 kg of coal per hour and produces 500 MW of power. If the heat of...

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The input power to operate a boiler comes from an electrical circuit with a voltage of 110 volts [ V ] and a resistance of 3 ohms [ Ω ].

The boiler produces 70 kilojoules of heat per minute [ k J m i n ] .

What is the efficiency of the boiler, expressed as a percentage [ % ] ?

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