Answer:
the efficiency of the generator is 81.82%.
Explanation:
The efficiency of a generator is defined as the ratio of the electrical power output to the mechanical power input. In this problem, the electrical power output is given as 90 hp, and the mechanical power input is the power supplied by the engine, which is 110 hp. Therefore, the efficiency of the generator can be calculated as follows:
Efficiency = Electrical power output / Mechanical power input
Efficiency = 90 hp / 110 hp
Simplifying the fraction, we get:
Efficiency = 0.8182
To convert this decimal to a percentage, we multiply by 100:
Efficiency = 0.8182 * 100
Rounding to two decimal places, we get:
Efficiency = 81.82%
Therefore, the efficiency of the generator is 81.82%.