Electronics Quiz

What is the main function of resistors in a circuit?

• Reduce the flow of electrons and convert electrical energy into heat

• Amplify electric currents

• Generate tiny electric currents when light falls on them

• Convert alternating currents into direct currents

What is the main function of diodes in a circuit?

• Amplify electric currents

• Reduce the flow of electrons and convert electrical energy into heat

• Convert alternating currents into direct currents

• Generate tiny electric currents when light falls on them

What is the main function of capacitors in a circuit?

• Transform electrical currents in various ways

• Convert alternating currents into direct currents

• Reduce the flow of electrons and convert electrical energy into heat

• Amplify electric currents

What is the main function of transistors in a circuit?

• Amplify electric currents

• Convert alternating currents into direct currents

• Switch tiny electric currents on and off or amplify them

• Generate tiny electric currents when light falls on them

What is the main function of opto-electronic components in a circuit?

• Turn light into electricity or vice-versa

• Switch tiny electric currents on and off or amplify them

• Convert alternating currents into direct currents

• Transform electrical currents in various ways

What is the main difference between analog and digital electronics?

• Analog electronics store information as numbers, while digital electronics store information as a pattern of light and dark areas

• Analog electronics convert light and dark areas into numbers, while digital electronics store a recognizable pattern of light and dark

• Analog electronics use digital format, while digital electronics use analog format

• Analog electronics work with radio waves, while digital electronics work with light waves

What is the main difference between electricity and electronics?

• Electricity is used in analog electronics, while electronics is used in digital electronics

• Electricity uses large currents, while electronics use small currents

• Electricity uses small currents, while electronics use large currents

• Electricity is used in digital electronics, while electronics is used in analog electronics

What is the main purpose of a printed circuit board (PCB) in electronic equipment?

• To restrict the flow of electrons and reduce the current or voltage flowing

• To connect components together with short lengths of copper cable

• To arrange components in a systematic way and create automatic connections

• To create electronic components in miniature form on the surface of pieces of silicon