Voltage Current and Resistance Quiz | Voltage Current and Resistance Multiple Choice Questions and Answers

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Questions
1 A neutral atom with an atomic number of five has how many electrons?
A 1
B 5
C none
D depends on the type of atom

Answer: 5
2 A wiper is the sliding contact in a
A switch
B photoconductive cell
C thermistor
D potentiometer

Answer: potentiometer
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3 If there is 6 A of current through the filament of a lamp, how many coulombs of charge move through the filament in 1.75 s?
A 10.5 C
B 105 C
C 3.4 C
D 34 C

Answer: 10.5 C
4 A multimeter measures
A current
B voltage
C resistance
D current, voltage, and resistance

Answer: current, voltage, and resistance
5 The unit of electrical charge is the
A volt
B ampere
C joule
D coulomb

Answer: coulomb
6 A material that does not allow current under normal conditions is a(n)
A insulator
B conductor
C semiconductor
D valence

Answer: insulator
7 The colored bands for a 4,700 ohm resistor with a ten percent tolerance are
A yellow, violet, red, gold
B yellow, violet, orange, gold
C yellow, violet, red, silver
D orange, violet, red, silver

Answer: yellow, violet, red, silver
8 When the current is 2.5 A, how many coulombs pass a point in 0.2 s?
A 12.5 C
B 1.25 C
C 0.5 C
D 5 C

Answer: 0.5 C
9 Eight-tenths coulomb passes a point in 4 s. The current in amperes is
A 1.6 A
B 16 A
C 2 A
D 0.2 A

Answer: 0.2 A
10 A two-terminal variable resistor is known as a
A potentiometer
B thermistor
C rheostat
D wiper

Answer: rheostat
11 A thermistor is a type of
A switch
B resistor
C battery
D power supply

Answer: resistor
12 Electrons in the outer orbit are called
A nuclei
B valences
C waves
D shells

Answer: valences
13 The conductance of an 8 ohm resistance is
A 12.5 mS
B 8 mS
C 12 S
D 125 mS

Answer: 125 mS
14 When placed close together, two positively charged materials will
A attract
B become neutral
C become negative
D repel

Answer: repel
15 Which of the following is not a type of energy source?
A generator
B rheostat
C solar cell
D battery

Answer: rheostat
16 The maximum resistance value for a brown, red, yellow, gold resistor is
A 126,000
B 126,600
C 114,000
D 132,000

Answer: 126,000
17 Current flows in a circuit when
A a switch is opened
B a switch is closed
C the switch is either open or closed
D there is no voltage

Answer: a switch is closed
18 The unit of electrical charge is the
A coulomb
B joule
C volt
D watt

Answer: coulomb
19 Materials with lots of free electrons are called
A conductors
B insulators
C semiconductors
D filters

Answer: conductors
20 An ohmmeter is an instrument for measuring
A current
B voltage
C resistance
D wattage

Answer: resistance

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