D ENERGY TRANSFER UNIT QUESTIONS
ESTIONS
1
a A fluorescent lamp is 25% efficient. Choose...
D ENERGY TRANSFER UNIT QUESTIONS
ESTIONS
1
a A fluorescent lamp is 25% efficient. Choose the statement that correctly
describes how the lamp performs.
A the lamp only works for a quarter of the time
B 25% of the electrical energy transferred to the lamp is wasted
C the lamp does not work properly
D 25% of the energy supplied to the lamp is transferred to light
Answers: 3
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