Electrical Engineering - Energy and Power - Discussion
Discussion Forum : Energy and Power - General Questions (Q.No. 5)
5.
A power supply produces a 0.6 W output with an input of 0.7 W. Its percentage of efficiency is
Discussion:
31 comments Page 2 of 4.
Sivaprakash said:
1 decade ago
Efficiency = output power/ input power = (0.6/0.7)*100 = 85.71%
Bhatruhari swain said:
1 decade ago
Efficiency = output/input.
= .6\.7.
= .857.
% efficiency = .857*100.
= 85.7%.
= .6\.7.
= .857.
% efficiency = .857*100.
= 85.7%.
ANKITA said:
1 decade ago
E = O/I.
= 0.6/0.7.
= 0.857.
E OF 100 % = 0.857*100.
= 85.7%.
= 0.6/0.7.
= 0.857.
E OF 100 % = 0.857*100.
= 85.7%.
Ramakanth said:
1 decade ago
E = output/input =output/output+losses.
So in the question they have to give that losses are neglected.
Then the answer is correct.
So in the question they have to give that losses are neglected.
Then the answer is correct.
Rani said:
1 decade ago
Option D was correct because the efficiency will be calculated by using formula (output/input).
So,
0.6/0.7 = 0.857.
Under % = 85.7%
So,
0.6/0.7 = 0.857.
Under % = 85.7%
Hemalatha said:
1 decade ago
@Hemalatha absolutely right the answer is 85.7%.
Baidya Nath Mohanta said:
1 decade ago
Efficiency = OP/IP *100.
= (0.6/0.7)*100.
= 85.7.
= (0.6/0.7)*100.
= 85.7.
Jomel voltboy said:
10 years ago
E = Output/Input*100.
E = 0.6/0.7*100.
E = 85.7%
E = 0.6/0.7*100.
E = 85.7%
MUBIANA said:
9 years ago
Efficiency = (output/input)*100.
Efficiency = (0.6/0.7)*100.
= 85.7%.
Efficiency = (0.6/0.7)*100.
= 85.7%.
Alpesh kachhadiya said:
9 years ago
Efficiency = Output/Input.
So, E =.6/.7*100.
= 85.7%.
So, E =.6/.7*100.
= 85.7%.
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