In circuit breakers the device used for tripping the line in the event of short-circuit is of _____ type.

magnetic

thermal

magnetic and thermal

low voltage

oil circuit breaker (OCB)

miniature circuit breaker (MCB)

air circuit breaker (ACB)

air blast circuit breaker (ABCB)

Magnetic and thermal release

Thermal release

Magnetic release

Low voltage release

frequent tripping of ELCB

electric shock

fire hazard

excessive billing of energy

2.0 to 6 amps.

0.5 to 60 amps.

1.0 to 62 amps.

6.0 to 32 amps.