A magnet relay is a device used for?
A
reading the magnitude of magnetic flux
B
controlling another circuit carrying larger current
C
turning in sports
D
storing magnetic field
Verified Correct Answer: B.
Physical Principles & Numerical Solution
Relays are electrically operated switches that open and close the circuits by receiving electrical signals from outside sources.
Source: WAEC / JAMB / NECO Classroom Archive (Record #64933)