单选题
发布日期:2021-03-22
generate its own electrical power
transform electrical energy into mechanical energy
increase or decrease circuit voltage as required
convert AC current to DC current
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A transformer in an electric circuit serves to ()
A transformer in an electric circuit serves to ()
Inductance is the property of an electric circuit that ()
Inductance is the property of an electric circuit that ()
Capacitance is the property of an electric circuit opposing a change in the ()
Capacitance is the property of an electric circuit opposing a change in the ()
Tools with ()handles should be used to check electric circuit.
Tools with ()handles should be used to check electric circuit.
A circuit breaker differs from a fuse in that a circuit breaker ().
A circuit breaker differs from a fuse in that a circuit breaker ().