The device in which one circuit controls another, especially if the current in the second circuit is large or dangerous is known as
A
Electromagnetic devices
B
Magnetic relay device
C
None at all
D
Sextant
Verified Correct Answer: B.
Physical Principles & Numerical Solution
Magnetic relay device :is the device that controls a circuit (i.e one circuit )if a current in the second circuit is large or dangerous
Source: Myschool Past Questions Archive (Record #40840)