Question

Efficiency is
a.
the percentage of energy lost to the surroundings as heat.
b.
the percentage of energy that is actually used to perform work.
c.
the entire amount of energy.
d.
the time it takes for half of the energy to be used.

Answer 1

B͙} T͙he percentage of energy that is actually used to perform work.

I͙ h͙o͙p͙e͙ t͙h͙i͙s͙ h͙e͙l͙p͙s͙ u͙

PɭȤ ⨏០ɭɭ០Ɯ ៣៩