and in the earthâs interior, which part is the densest? explain please. THANKS!!!
Answer: All of our CB antennas have roughly 50 Ohm impedance to match the output of the CB radio. The impedance is not critical as 25 Ohms to 100 Ohms is acceptable; however, the best signal transfer occurs at 50 Ohms, so every design is optimized very close to 50 Ohms.
A residual-current device (RCD), or residual-current circuit breaker (RCCB), is a device to quickly disconnect current to prevent serious harm from an ongoing electric shock.Injury may still occur in some cases, for example if a person falls after receiving a shock.esidual-current and overcurrent protection may be combined in one device for installation into the service panel; this device is known as a GFCI (ground fault circuit interrupter) breaker in the USA and Canada, and as an RCBO (residual-current circuit breaker with overload protection) in Europe.