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The screw adjusts the size of the gap between the spring attached to the armature and the circuit wiring. This gap has to be just the right size for the make-break action to work properly. Wear and tear and vibrations can alter the gap, or conceivably even large temperature differences, so an easy way to put it back is necessary.
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What is the purpose of using transformer in electric bell circuit?
To supply the bell, because the latter has a rated voltage that's lower than the mains.
Can the same electric bell work on AC as well DC 250v electric supply?
No, the two systems need a different coil resistance.
What are trembler bells?
A trembler bell is a non-polarized bell operated by current that is made intermittent by a contact associated with the bell hammer. It was invented and later patented by J. F. Molaughlin.
What are the disadvantages and advantages of electric bell?
what are the disadvantages of electric bell what are the disadvantages of electric bell
In electric bell electric energy is converted into?
An electric doorbell uses electrical current thru a coil to move a metal bar using magnetism and cause it to strike a metal plate making a ring sound
