beautypg.com

Resistors, Self test, Theory – Elenco Electronic Component Kit User Manual

Page 6: Practice, Extra credit

background image

-5-

RESISTORS

SELF TEST

1. A flow of electrons through a material:

a) Voltage

c) Current

b) Resistance

d) Conductance

2. The pressure that pushes electrons through a

material:

a) Voltage

c) Conduction

b) Current

d) Resistance

3. A material that has very high resistance to electron

flow:

a) Conductor

c) Resistor

b) Semiconductor

d) Insulator

4. A material that allows electrons to flow easily:

a) Conductor

c) Resistor

b) Semiconductor

d) Insulator

5. A material that produces electrical friction and

restricts the flow of electrons:

a) Conductor

c) Resistor

b) Semiconductor

d) Insulator

6. A resistor that is made by wrapping a wire around a

ceramic rod:

a) Carbon Film

c) Thermistor

b) Carbon Composition

d) Wirewound

7. A resistor made by heating powder and resin in an

oven:

a) Carbon Film

c) Thermistor

b) Carbon Composition

d) Wirewound

8. A resistor made by depositing a very thin layer of

resistive material on a ceramic rod:

a) Carbon Film

c) Thermistor

b) Carbon Composition

d) Wirewound

9. One of the preferred values for a 5% resistor:

a) 4000

Ω

c) 77

Ω

b) 560

Ω

d) 395

Ω

10. The amount of wattage a resistor can handle is

determined by:

a) Value

c) Current

b) Voltage

d) Size

THEORY

Circle the letter that best fits the description.

PRACTICE

Open the bag marked “resistors” and fill in the table below.

Color 1

Color 2

Color 3

Color 4

Value

Percent

Wattage

EXTRA CREDIT

Using a razor blade or sharp knife, scrape away the paint on the body of one resistor and determine the type of
construction used to make it. Try and determine all of the materials used including the metals used to make the
leads.