Question
Physics Question on Power and Efficiency
If a machine perform 4000 J output work and 1000 J is inside loss due to friction, then find the efficiency?
A
80%
B
30%
C
25%
D
60%
Answer
80%
Explanation
Solution
The correct option is (A): 80%.
If a machine perform 4000 J output work and 1000 J is inside loss due to friction, then find the efficiency?
80%
30%
25%
60%
80%
The correct option is (A): 80%.