FERTILISER TECHNOLOGY QUIZ

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?

105 C

34 C

3.4 C

10.5 C

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When the current is 2.5 A, how many coulombs pass a point in 0.2 s?

12.5 C

5 C

1.25 C

0.5 C

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The minimum resistance value for a blue, gray, red, silver resistor is

612

6800

6460

6120

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A wiper is the sliding contact in a

switch

photoconductive cell

potentiometer

thermistor

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A neutral atom with an atomic number of five has how many electrons?

depends on the type of atom

none

1

5

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The colored bands for a 4,700 ohm resistor with a ten percent tolerance are

yellow, violet, red, silver

yellow, violet, orange, gold

yellow, violet, red, gold

orange, violet, red, silver

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The conductance of an 8 ohm resistance is

12 S

125 mS

12.5 mS

8 mS

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Current flows in a circuit when

a switch is opened

the switch is either open or closed

a switch is closed

there is no voltage

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A multimeter measures

voltage

resistance

current

current, voltage, and resistance

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A material that does not allow current under normal conditions is a(n)

insulator

conductor

valence

semiconductor

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