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Electricity and Circuits — Science STD 6 — Question

CBSE BoardEnglish MediumSTD 6ScienceElectricity and Circuits1 Mark
MCQ
Filament of a torch bulb is:
  • A
    A metal case.
  • B
    Metal tip at the centre of the base.
  • C
    Two thick wires.
  • ✓
    A thin wire.
✓

Answer

Correct option: D.
A thin wire.
Filament of a torch bulb is a thin wire which gives off light. It is fixed to two thicker wires which provides support to it.
One of these thick wires is connected to the metal case at the base of the bulb and the other thick wire is connected to the metal tip at the centre of the base.

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