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Which of the following is used as a safety device in an electrical circuit?
a) Circuit breaker                             

b) Key
c) Battery                                             

d) Ammeter

a

Overloading in high current drainage, can be well prevented by using: NTS PST(2016/2017)
a) electric battery                

b) electric cell
c) fuse   

d) switch               

e) circuit breaker

e
Comments :

Fuse?

by at 2025-03-12 20:49:27

both c and e

by at 2025-03-26 17:23:53

Yes, both C and E are correct, but follow the books A fuse is a safety device containing a thin wire that melts and breaks the circuit if the current exceeds a certain safe level. This prevents overloading and potential damage to appliances and wiring. A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by overcurrent or 1 short circuit. Unlike a fuse, a circuit breaker can be reset (either manually or automatically) to restore regular operation

by at 2025-04-11 06:59:58

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Which is the best material for making an electromagnet?
a) Rubber             

b) Glass                 

c) Iron

d) Plastic

c

Electricity is a form of;
a) Energy                                            

b) Waves
c) Work done                       

d) Speed

a

Electricity can be changed into;
a) Heat                                 

b) Light
c) Sound                                               

d) All of these

d

The flow of electrons in a wire is called;
NTS PST–P-2----(date not confirm)
a) Voltage                                            

b) Current
c) Potential                           

d) Power

b