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simple electric bell circuit

santimiranti (28)in #science-education • 7 years ago

the 3rd state junior high school student workshop

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#photography #steemit #indonesia #steepshot
7 years ago in #science-education by santimiranti (28)
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8 votes
  • + muhammadarsyad
  • + santimiranti
  • + bossundonno
  • + rickner
  • + zulkhairi19
  • + razali1
  • + rayasfara
  • and 1 more
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