the frequency of the ringing of an electric bell can be altered with the help of____
(a)armature
(b)hammer
(c) contact spring
(d) adjustment screw
Answers
Answered by
2
Answer:
Hammer
Explanation:
the frequency of the ringing of an electric bell can be altered with the help of Hammer.
Answered by
1
Answer:
contact spring
Explanation:
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