Audio-Video Products and Systems Quiz week4

A transformer that is used to provide line isolation and generates multiple output voltages for the secondary circuit.

• Switch mode power transformer

• Flyback transformer

• Step-up transformer

• Step-down transformer

A safety component that does not conduct unless the AC voltages increase above normal like during a power surge.

• PTC

• NTC

• Varistor

• Potentiometer

An electronic component that allows low frequencies to pass and block high frequencies.

• Resistor

• Inductor

• Capacitor

• Diode

A circuit used to pass the desired signal and block the undesired signal.

• Power supply circuit

• EMI filter circuit

• Degaussing circuit

• Protection circuit

A transformer that generates various voltages including high voltage.

Electronic components whose resistance varies according to temperatures.

• Capacitor

• Thermistor

• Varistor

• Potentiometer

A thermistor which has very high resistance when cold and very low resistance when hot.

• Varistor

• Potentiometer

• PTC

• NTC

An electronic component that allows high frequencies to pass and block low frequencies.

• Resistor

• Diode

• Capacitor

• Inductor

A thermistor which has very low resistance when cold and very high resistance when hot.

• PTC

• NTC

• Potentiometer

• Varistor

What is the primary function of a transformer that generates various voltages including high voltage?

• To regulate the flow of current in a circuit
• To convert sound waves into electrical energy
• To transmit data wirelessly
• To change the voltage level of an AC electrical circuit