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learning task 2.9
Direction write the letter of the correct answer on your paper or notebook
a low-pressure mercury-vapor
Incandescent lamp
D lamp
Leaming Tau 2.9
lamp that uses fluorescence to produce visible light
4 bu
Dorescent lang
2 Andolay with that opens after a second or two
A ballant
cframe
Borescent
praeans the electrodes to make available a large supply of the electron
Buorescent
D. starter
Crame
Dstarter
4 Which of the following is statement is not TRUE about fluorescent lamp?
Axolfers a low system cost
the life span of a fluorescent lamp is long
C. energy consumption of fluorescent lamp is higher than incandescent
Lamp
D with high luminous efficaces to yield a low cost of operation
transmission line
5. The metal housing of the whole fixture
A balast
C. frame
B. Fluorescent
D. starter
6. The nside the starter gets ionized due to this full voltage and heats
the bimetallic strip. It causes to bend the bimetallic strip to connect to
the fixed contact
C gas
D. glass
Bectricity
7 Cicline lamps are circular tube-type lamps which is commonly used for?
A cose areas
C open areas
B. indoor areas
D. portable task lighting
& Coating inside the bulb transforms ultraviolet radiation into visible light.
A are discharge
C. cathode
D. phosphor
9 Hot cathodes at each end of lamp are coated with emissive
malenals which emit electrons. Usually made of coiled-coilor
single-coil tungsten wire
A arc discharge
C. cathode
B base
D. phosphor​


Sagot :

Answer:

1.a

2.a

3.c

4.d

5.b

6.b

7.a

8.d

9.d

Explanation:

just do it