closed switch sentence in Hindi

Examples

1. By 1935 new stations were connected to remote supervision systems allowing power directors to open and close switches and breakers from central offices without having to go through the tower operators.
2. Contact form, or simply form, is the term relay manufacturers use to describe a relay's contact configuration . " Form A refers to a single-pole, normally open switch . " Form B " indicates a single-throw, normally closed switch, and " Form C " indicates a single-pole, double-throw switch.
3. This self-stroking / positive-feedback process almost instantly turns the transistor on as hard as possible ( putting it in the saturation region ), making the collector-emitter path look like essentially a closed switch ( since V CE will be only about 0.1 volts, assuming that the base current is high enough ).