EE3 Electrical System Components L3 MS

What are electronic systems made up of?

• Different components

• Single component

• Only wires

• Only batteries

What is the role of each component in an electronic system?

• To contribute to the overall operation

• To increase the size

• To decrease the cost

• To make it heavier

What are common types of disposable batteries?

• Alkaline and zinc-carbon

• NiMH and Li-ion

• Lead-acid and nickel-cadmium

• Silver-oxide and mercury

Which types of batteries are commonly found in electronic appliances?

• Alkaline and zinc-carbon

• NiMH and Li-ion

• Lead-acid and nickel-cadmium

• Silver-oxide and mercury

What is the function of batteries in electronic systems?

• Convert electrical energy into chemical energy

• Convert stored chemical energy into electrical energy

• Store electrical energy indefinitely

• Convert mechanical energy into electrical energy

What is the circuit symbol for a battery?

• A single line

• A circle with a plus sign

• Two parallel lines of different lengths

• A triangle with a line through it

What does a rectifier do?

• Converts direct current (DC) into alternating current (AC)

• Converts alternating current (AC) into direct current (DC)

• Converts electrical energy into mechanical energy

• Converts mechanical energy into electrical energy

Why do power supplies contain rectifiers?

• To convert DC to AC for wall sockets

• To convert AC to DC for electrical devices

• To increase the voltage of AC

• To decrease the voltage of DC

Transformers are commonly used to do what with the voltage of alternating current?

• Stabilize

• Eliminate

• Increase or decrease

• Convert to direct current

What is a contactor?

• A type of resistor

• An electrically controlled switch

• A manual switch

• A type of capacitor