The device in which one circuit controls another, especially if the current in the second circuit is large or dangerous is known as
Answer Details
The correct answer is "Magnetic relay device".
A magnetic relay is an electrical switch that is activated by a magnetic field. It's used to control a high-power or dangerous circuit using a low-power circuit. For example, you can use a low-power circuit to turn on a high-power circuit, such as turning on a large electrical motor. The low-power circuit creates a magnetic field that activates the magnetic relay, which then switches on the high-power circuit. This allows you to control the high-power circuit from a safe distance and protect yourself from potential electrical hazards.