Which part of the electric bulb gives off light, when the bulb is swit

1.	Which part of the electric bulb gives off light, when the bulb is switched on?
A.	Positive terminal
B.	Negative terminal
C.	protons
D.	None of these
Answer» D. None of these

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Select the correct statement:

Which part of the electric bulb gives off light, when the bulb is switched on?

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