Question

what is the core used in a very high frequency decives?​

Answer 1

Answer:

These include individual rights common to most, such as equality before the law, freedom of speech and freedom of expression, religious and cultural freedom, Freedom of assembly (peaceful assembly), freedom of religion (freedom to practice religion), right to constitutional remedies for the protection of civil rights ...

Answer 2

Answer:

The ferrite cores used for signals have a range of applications from 1 kHz to many MHz, perhaps as much as 300 MHz, and have found their main application in electronics, such as in AM radios and RFID tags.