On passing current through an electric bulb, bulb starts emitting light because its:
A. Filament starts emitting light and then gets heated up
B. Thick connecting wires start emitting light and then get heated up
C. Filament gets heated up and then starts emitting light
D. Thick wires get heated up and then starts emitting light.
Answer:C
On passing current through an electric bulb, bulb starts emitting light because its:
A. Filament starts emitting light and then gets heated up B. Thick connecting wires start emitting light and then get heated up C. Filament gets heated up and then starts emitting light D. Thick wires get heated up and then starts emitting light.