Machine-translated by Google. Questions are authored in English.
Top

Discussion

Two identical energy meters are connected in series in the same circuit. Over an hour they will

  • A.register different amounts
  • B.both register nothing
  • C.register the same energy
  • D.each register half of the energy

Answer: C

Their current coils carry the same current and their pressure coils see nearly the same voltage, so each measures the same power and registers the same energy. The tiny drop across the first coil makes an immaterial difference, and this is a standard way of comparing two meters.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.