Current Electricity and Magnetism — Science STD 8 — Question
Maharashtra BoardEnglish MediumSTD 8ScienceCurrent Electricity and Magnetism1 Mark
MCQ
Which power supply can be used in electric bell:
A
$AC$
B
$DC$
C
Can't be predicted
✓
Both $A $ and $B$
✓
Answer
Correct option: D.
Both $A $ and $B$
Electric bell works on the mechanism of electromagnets and for this, any type of power either $AC$ or $DC$ can be used.
An electric bell is a mechanical or electronic bell that functions by means of an electromagnet.
When an electric current is applied, it produces a repetitive buzzing, clanging, or ringing sound.
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