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CIE-01 Midterm

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1: The first civilization to theorize about atoms was the

Chinese
Greek
Dutch
Italian

2: The person who invented the "Leyden Jar" was

Chinese
Greeks
Dutch
Italian

3: The person who first put many cells in series to form the first battery was

Chinese
Greek
Dutch
Italian

4: The ________ were the first to notice that a needle rubbed with a lodestone always pointed in the same direction

Chinese
Greek
Dutch
Italian

5: The person who found that a frog muscle could be activated by an electrical voltage was

Chinese
Greek
Dutch
Italian

6: The first commercial electrical generating station (Manhattan, NY) produced

AC
sine waves
square waves
DC

7: The first words spoken over the telephone were

a call for help
what hath God wrought
a birthday greeting
mary had a little lamb

8: the first widespread commercial use of electricity was in the ________ industry

air conditioning
manufacturing
plating
automobile

9: The electron was discovered by

Edison
Henry
Faraday
Thomson

10: The first (rather short) telegraph line was constructed by

Morse
Wheatstone
Edison
Tesla

11: The first intercontinental radio message was sent by

Marconi
Edison
Tesla
DeForest

12: The first television pictures were transmitted from the

Empire State building
Edison Labs
battleship Missouri
World Fair

13: The first person to make an "Edison valve" into an amplifier was

Edison
Fleming
DeForest
Tesla

14: Which of these electrical devices came onto the market first?

refrigerator
vacuum cleaner
clothes washer
dishwasher

15: The transistor was invented at

Bell labs
Edison labs
University of Chicago
University of Pennsylvania

16: Which of the following names was NOT suggested for the transistor?

Iotatron
crystal triode
vacuum triode
solid triode

17: Who invented the integrated circuit?

Noyce and Moore
Noyce and Kilby
Townes and Schawlow
Greatbatch and Chardack

18: Who invented the heart pacemaker?

Noyce and Moore
Noyce and Kilby
Townes and Schawlow
Greatbatch and Chardack

19: Who founded Intel

Noyce and Moore
Noyce and Kilby
Townes and Schawlow
Greatbatch and Chardack

20: Who first described the laser?

Noyce and Moore
Noyce and Kilby
Townes and Schawlow
Greatbatch and Chardack

21: A resistor color-coded brown-black-orange-gold has a value of

100,000 ohms
10k ohms
10 amperes
1000 ohms

22: Component Q127 in a circuit is a

resistor
capacitor
integrated circuit
transistor

23: Power is measured in

watts
watt-hours
volts
amperes

24: The voltage measured across a resistor is 13.5 volts and the current through the resistor is measured as 7.5 milliamperes. The resistor value is

5.5k ohm
550 ohm
180 ohm
1.8k ohm

25: The best conductor at room temeperature is

Copper
Gold
Silver
Tin

26: A "primary" cell is

self-recharging
used to start your car
used to store up solar energy
used up and then discarded

27: Most commercial electrical power is generated by

photoelectric cells
rotating turbines
electrochemical cells
fuel cells

28: The electrical power delivered to your home in the USA is almost universally

sine wave 60 Hz.
sine wave 50 Hz.
direct current 60 Hz.
direct current 50 Hz.

29: Stacking cells in series

increases voltage, decreases available current
decreases voltage, increases available current
increases voltage, available current stays the same
voltage stays the same, increases available current

30: Your cellphone has a lithium ion battery rated at 120 milliampere-hours. In standby mode, your phone draws 330 microamperes. About how many days will your phone last between charges if it is left on continuously?

5
10
15
20

31: A capacitor

stores magnetic fields
stores lines of flux
passes AC and blocks DC
passes DC and blocks AC

32: A half-wave dipole cut to receive NOAA weather radio on Wolf Mountain in Grass Valley is about how many inches end-to-end? (Hint -- google is your friend to find frequencies)

9
18
36
45

33: An inductor stores energy in a(n)

magnetic field
electric field
iron core
force field

34: A capacitive gasoline fuel gauge operates on the principle of a change in

conductance
impedance
resistance
dielectric constant

35: A capacitor and inductor in parallel at resonance will have

maximum impedance
minimum impedance
rotating vectors
increased transmogrification

36: A loudspeaker works on the principle of

moving magnet
moving coil
moving pointer
moving across town

37: Most magnetic material today, including floppy disks, are made of

alnico
rare earth
lodestone
ferrite

38: A transformer can change

AC to AC
AC to DC
DC to AC
DC to DC

39: The most efficient power transmission design to send power from a generating station to a substation will use

low voltage, low current
low voltage, high current
high voltage, low current
high voltage, high current

40: Power transformers generally have a core of

ceramic or silicon
iron or steel
air or vacuum
plastic or wood

41: Silicon and Germanium come from column ________ of the periodic table, while P-dopant comes from column ________ and N dopant comes from column ________.

3, 4, 5
4, 3, 5
4, 5, 3
3, 5, 4

42: Rectifiers and LEDs are generally operated in the ________ direction while zener diodes and varicaps are operated in the ________ direction.

upper, lower
reverse, forward
forward, reverse
lower, upper

43: Both bipolar and field effect transistors have ________ active regions

1
2
3
4

44: A great advantage of the field effect transistor over the bipolar transistor is that the field effect transistor has

a greater current capability
the ability to handle higher powers
lower input impedance
higher input impedance

45: We say that field effect transistor are controlled by ________, while bipolar transistors are controlled by ________.

leprechauns, trolls
voltage, current
current, voltage
magic, wizardry

46: How many cells does the small LED flashlight we made in Lesson 1 take?

1
2
3
4

47: The approximate TOTAL voltage generated by both potatos in the potato clock is

500 millivolts
800 millivolts
1.5 volts
3 volts

48: An antenna is

a highly critical device requiring much theory and claculation
a fairly easily assembled mechanical device
a fairly complex device requiring at least one amplifier
a device that cannot be "focused" to have gain

49: The reed switch motor operates on the principle of

charge and discharge
positive and negative
doping and intrinsic
attraction and repulsion

50: The approximate current gain of a small signal bipolar transistor is between

0.5 and 5
5 and 50
50 and 500
500 and 5000

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