When the output power equals to one-half of the input power, efficiency of the transformer becomes:
Correct answer: C. 50%
- A. 0%
- B. 100%
- C. 50%
- D. 200%
Explanation
The following is the solution:Following is the formula for efficiency. As we can plug in values of input and output, we will get 50%.
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About Work and Energy
Work transfers energy when a force causes displacement, while kinetic energy, gravitational potential energy and power describe motion, position and the rate of energy transfer. The work-energy theorem links net work with change in kinetic energy, and efficiency accounts for energy losses rather than treating them as energy destruction.
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