Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > Practically, if 10kJ of energy is supplied to...
Start Learning for Free
Practically, if 10kJ of energy is supplied to a device, how much energy will the device give back?
- a)Equal to10kJ
- b)Less than 10kJ
- c)More than 10kJ
- d)Zero
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Practically, if 10kJ of energy is supplied to a device, how much energ...
Practically, if 10kJ of energy is supplied to a system, it returns less than the supplied energy because, some of the energy is lost as heat energy, sound energy etc.
Most Upvoted Answer
Practically, if 10kJ of energy is supplied to a device, how much energ...
Answer:
Introduction:
In this question, we are given that 10 kJ of energy is supplied to a device, and we need to determine how much energy the device will give back.
Explanation:
To understand how much energy the device will give back, we need to consider the efficiency of the device. The efficiency of a device is defined as the ratio of useful output energy to the input energy.
Efficiency:
In practical devices, no device has 100% efficiency. This means that a certain amount of energy supplied to the device will be lost in the form of heat, sound, or other losses. Therefore, the device will give back less energy than what was supplied to it.
Example:
Let's consider an example to illustrate this. Suppose we have a device with an efficiency of 80%. If we supply 10 kJ of energy to this device, it will convert 80% of the input energy into useful output energy. The remaining 20% will be lost as heat or other forms of energy.
Calculating the energy given back by the device:
To calculate the energy given back by the device, we need to multiply the input energy by the efficiency of the device.
Energy given back = Input energy * Efficiency
In this case, the input energy is 10 kJ and the efficiency is less than 100%. Therefore, the energy given back by the device will be less than 10 kJ.
Conclusion:
Based on the above explanation, we can conclude that if 10 kJ of energy is supplied to a device, the device will give back less than 10 kJ of energy. Hence, option 'B' is the correct answer.
Introduction:
In this question, we are given that 10 kJ of energy is supplied to a device, and we need to determine how much energy the device will give back.
Explanation:
To understand how much energy the device will give back, we need to consider the efficiency of the device. The efficiency of a device is defined as the ratio of useful output energy to the input energy.
Efficiency:
In practical devices, no device has 100% efficiency. This means that a certain amount of energy supplied to the device will be lost in the form of heat, sound, or other losses. Therefore, the device will give back less energy than what was supplied to it.
Example:
Let's consider an example to illustrate this. Suppose we have a device with an efficiency of 80%. If we supply 10 kJ of energy to this device, it will convert 80% of the input energy into useful output energy. The remaining 20% will be lost as heat or other forms of energy.
Calculating the energy given back by the device:
To calculate the energy given back by the device, we need to multiply the input energy by the efficiency of the device.
Energy given back = Input energy * Efficiency
In this case, the input energy is 10 kJ and the efficiency is less than 100%. Therefore, the energy given back by the device will be less than 10 kJ.
Conclusion:
Based on the above explanation, we can conclude that if 10 kJ of energy is supplied to a device, the device will give back less than 10 kJ of energy. Hence, option 'B' is the correct answer.
Free Test
FREE
| Start Free Test |
Community Answer
Practically, if 10kJ of energy is supplied to a device, how much energ...
Less than 4kj
|
Explore Courses for Electrical Engineering (EE) exam
|
|
Top Courses for Electrical Engineering (EE)View all
Question Description
Practically, if 10kJ of energy is supplied to a device, how much energy will the device give back?a)Equal to10kJb)Less than 10kJc)More than 10kJd)ZeroCorrect answer is option 'B'. Can you explain this answer? for Electrical Engineering (EE) 2025 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about Practically, if 10kJ of energy is supplied to a device, how much energy will the device give back?a)Equal to10kJb)Less than 10kJc)More than 10kJd)ZeroCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Practically, if 10kJ of energy is supplied to a device, how much energy will the device give back?a)Equal to10kJb)Less than 10kJc)More than 10kJd)ZeroCorrect answer is option 'B'. Can you explain this answer?.
Practically, if 10kJ of energy is supplied to a device, how much energy will the device give back?a)Equal to10kJb)Less than 10kJc)More than 10kJd)ZeroCorrect answer is option 'B'. Can you explain this answer? for Electrical Engineering (EE) 2025 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about Practically, if 10kJ of energy is supplied to a device, how much energy will the device give back?a)Equal to10kJb)Less than 10kJc)More than 10kJd)ZeroCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Practically, if 10kJ of energy is supplied to a device, how much energy will the device give back?a)Equal to10kJb)Less than 10kJc)More than 10kJd)ZeroCorrect answer is option 'B'. Can you explain this answer?.
Solutions for Practically, if 10kJ of energy is supplied to a device, how much energy will the device give back?a)Equal to10kJb)Less than 10kJc)More than 10kJd)ZeroCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Electrical Engineering (EE).
Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free.
Here you can find the meaning of Practically, if 10kJ of energy is supplied to a device, how much energy will the device give back?a)Equal to10kJb)Less than 10kJc)More than 10kJd)ZeroCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Practically, if 10kJ of energy is supplied to a device, how much energy will the device give back?a)Equal to10kJb)Less than 10kJc)More than 10kJd)ZeroCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for Practically, if 10kJ of energy is supplied to a device, how much energy will the device give back?a)Equal to10kJb)Less than 10kJc)More than 10kJd)ZeroCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of Practically, if 10kJ of energy is supplied to a device, how much energy will the device give back?a)Equal to10kJb)Less than 10kJc)More than 10kJd)ZeroCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Practically, if 10kJ of energy is supplied to a device, how much energy will the device give back?a)Equal to10kJb)Less than 10kJc)More than 10kJd)ZeroCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Electrical Engineering (EE) tests.
|
|
Explore Courses for Electrical Engineering (EE) exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup on EduRev and stay on top of your study goals
10M+ students crushing their study goals daily