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1. The explanation below shows how electric bell works. Type in the words in the correct spaces to complete the explanation.
When the
is closed, the iron
core gets
and
. The soft iron core
The hammer hits the
. The soft iron core
A gap is created at the contact X, which causes the circuit to
.
Current stops flowing. The
.loses its magnetism and releases
the soft iron armature. Contact is
. and the circuit is completed again. The process is repeated until the switch is opened.
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