MCQOPTIONS
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MCQOPTIONS
| 1. |
The efficiency of a machine is 80% and the total energy input is 2000 J. The output of the machine is |
| A. | 1600 J |
| B. | 2500 J |
| C. | 2080 J |
| D. | 1000 J |
| Answer» B. 2500 J | |