Electronics

Question 1

Diode

Answer 1

A component that will allow current to flow in one direction only

Question 2

If the positive side end of the battery is connected to the negative end of the diode it is said to be what

Answer 2

Reverse Biased

Question 3

If the positive side end of the battery is connected to the positive end of the diode it is said to be what

Answer 3

Forward Biased

Question 4

A diode can be the seed to

Answer 4

Change alternating current into direct current

Question 5

Electronic devices such as radios, tape recorders and calculators

Answer 5

Need low voltage direct current

Question 6

Light Emitting Diode

Answer 6

A diode that gives out light when a current flows through it

Question 7

Current will only flow when an LED is

Answer 7

Forward biased

Question 8

LED’s use only tiny currents so

Answer 8

A resistor must be connected in series with it

Question 9

LED’s are useful as they are

Answer 9

Cheap, reliable, long lasting and use far less current than other light bulbs

Question 10

Light dependant resister

Answer 10

Is a resistor whose resistance depends on light

Question 11

When light falls on an LDR

Answer 11

It’s resistance decreases, this low resistance will allow a current through the circuit

Question 12

What is electronics

Answer 12

The careful and exact control of tiny and exact control of electrical current