Question : What is the unit of work done?
Option 1: Watt
Option 2: Decibel
Option 3: Ampere
Option 4: Joule
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Correct Answer: Joule
Solution : The correct answer is Joule.
Work is essentially nothing more than energy manifested mechanically. W is used to represent it. The joule is the SI unit of work (J). The work produced by the force of one Newton creating a displacement of one metre is known as a joule. Newton metres, or N-m, are also occasionally used to measure work.
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Question : An electric current is expressed by a unit called:
Option 1: Metre
Option 2: Ampere
Option 3: Watt
Question : The SI unit of electric charge is a ______.
Option 1: Coulomb
Option 2: watt
Option 3: newton
Option 4: joule
Question : Which of the following is a unit of distance?
Option 1: Newton
Option 2: Watt
Option 3: Light-year
Question : Identify the correct statement.
Option 1: Newton is a unit of force.
Option 2: Newton is a unit of power.
Option 3: Joule is a unit of force.
Option 4: Joule is a unit of power.
Question : What is the commercial unit of electric energy?
Option 1: Watt-hour
Option 2: Watt per hour
Option 3: Kilowatt-hour
Option 4: Kilowatt per hour
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