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potential coil การใช้

ประโยคมือถือ
  • The current coils are connected in analog wattmeters, the potential coil carries a needle that moves over a scale to indicate the measurement.
  • The potential coil has, as a general rule, a high-value resistor connected in series with it to reduce the current that flows through it.
  • For example, a meter was previously used for four wire services containing two potential coils and three current coils and called a 2.5 element meter.
  • The device consists of a pair of fixed coils, known as " current coils ", and a movable coil known as the " potential coil ".