Related Questions

The hot resistance of the bulb's filament is higher than its cold resistance because the temperature coefficient of the filament is
A Zero
B Negative
C Positive
D About 2 ohms per degree
Each stamen has a slender stalk or filament at the top of which a pollen bearing organ is present.
A Stigma
B Anther
C Filament
D Ovary
These are rods or filament like very small bodies present in the cytoplasm of all cells of plants and animals.
A Golgi Bodies
B Ribosomes
C Lysosomes
D Mitochondria
Electric bulb filament is made of :
A Copper
B Aluminum
C Zinc
D Tungsten
Electric bukb filament is mede of -
A Copper
B Aluminum
C Zinc
D Tungsten
The filament of an electric bulb is made of
A tungsten
B nichrome
C graphite
D iron
The individual chain of cells or filament in the colony of Nostoc is known as
A Trichome
B Heterocyst
C Hormogonia
D None of the above
An electric filament bulb can be worked from
A D.C. supply only
B A.C. supply only
C Battery supply only
D All above
Resistance of carbon filament lamp as the applied voltage increases.
A Increases
B Decreases
C Remains same
D None of the above
The material used in the filament of electric bulbs is
A Nichrome
B Tungsten
C Constantan
D German silver

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