Agin nous a DOSKETAN TOTD4c3b7147e994d1
NINCSIC Energy
☆ WEIL
KINETIC Energy
G
TA Nos a basketball
→ Mechanical energy
(with wasted heat)
2 The sequence of
energy
Chemical energy Thermal energy
transformations shown
in the diagram best
explains which event?
a. A calculator is on
b. A match burns
C. Electric current runs a table lamp
d. Jet fuel undergoes combustion to power a jet
3 A group of campers creates a campfire by burning several wooden logs. Which
statement best describes the energy transformations that occur when the log burns?
a. Chemical energy from the wood is converted into light and heat energy
b. Heat energy from the logs is converted into chemical and light energy
Chemical energy from the air is converted into mechanical and light energy
d. Heat energy from the air is converted into mechanical and light energy
c.

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put the answers   and i could answer.

on passing the small ampere of electric current through the tube made of ar and hg of cfl generates uv rays which excites the fluorescent and thus emits the high radiation by consumption of just 5- 12 w in comparison to incandescent light which requires more power such as around 40 - 55 w to lighten.

moreover the life span of fluorescent or cfl is around 8000 h whereas the life span of incandescent is around 1200 h

hence, the building installed with incandescent lights bears more electricity bill.