R Coreor or Ferrite Rod Core
Ferrite Rods cores (R Cores) are used as the core of solenoidal Coils for two main functions:
1. Tuning: Moving the core adjusts the coil to the required inductance value (L). Advantages of the open circuit are high Q and a good temperature stability
2. EMI suppression: The coil can carry a high DC current without being saturated because of the open magnetic circuit.
R cores are mainly used as the magnetic cores of the coils which do not require adjustments as well as magnetic shield...
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