Advertisements
Advertisements
प्रश्न
An engine pumps up 200 kg of water through a height of 20 m in 10 seconds. If the efficiency of the engine is 80%. Calculate the power of the engine.
पर्याय
3800 W
5000 W
4900 W
4800 W
MCQ
उत्तर
4900 W
Explanation:
Output power = `"mgh"/"t"`
= `(200 xx 9.8 xx 20)/10`
= 3920 watt
∴ η = `"P"_"o"/"P"_"i"`
Pi = `"P"_"o"/η`
= `(3920 xx 100)/80`
= 4900 watt
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
