Question

how does a circuit breaker protect a refrigerator?
a. when the current is too high, a metal strip in the fuse melts and opens the circuit.
b. when the resistance is too high , a re-settable which opens a circuit
c. when the current is too high , a re-settable switch opens the circuit
d. when the resistance is too high a metal strip in the fuse melts and opens the circuit

Answer 1

Answer:

C. When the current is too high, a reset-able switch opens the circuit.    

Explanation:

The circuit breaker has an electromagnet that has a specific maximum magnetic force. When the current becomes too high the core is magnetized

and attracts a soft iron armature which automatically breaks the circuit. Once the problem has been fixed the circuit breaker is reset by a switch.

Answer 2

Answer: When the current is too high, a resettable switch opens the circuit.

Explanation: A P E X