In water-turbine system, water falls from 20 m at the rate of 10kgs−1. If the losses due to friction are 20%, then power generated by the turbines is :
(take g=10m/s2)
A
4 kW
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
3.6 kW
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
1.6 kW
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
2.6 kW
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is D 1.6 kW
Given,
mt=10kg/s
h=20m
g=10m/s2
Due to friction, 20% input power loss, and only 80% input power used to generated output,