Question
Physics Question on work, energy and power
If a machine perform 4000 J output work and 1000 J is inside loss due to friction find efficiency = ?
A
20%
B
25%
C
80%
D
60%
Answer
80%
Explanation
Solution
The correct option is (C): 80%.
If a machine perform 4000 J output work and 1000 J is inside loss due to friction find efficiency = ?
20%
25%
80%
60%
80%
The correct option is (C): 80%.