Q.1
The nominal value of a brown, black, yellow, and gold resistor is 100,000 ohms.
Q.2
A wiper is the sliding contact in a
Q.3
When the current is 2.5 A, how many coulombs pass a point in 0.2 s?
Q.4
A free electron is a valence electron that has broken away from its parent atom.
Q.5
The atomic number is the number of neutrons in the nucleus.
Q.6
An open circuit is one that has a complete current path.
Q.7
A neutral atom is one with an equal number of protons and electrons.
Q.8
Free electrons make current possible.
Q.9
A material that does not allow current under normal conditions is a/an
Q.10
The unit of electrical charge is the
Q.11
Eighttenths coulomb passes a point in 4 s. The current in amperes is
Q.12
Current flows in a circuit when
Q.13
An ammeter is connected across the current path.
Q.14
A voltmeter is connected across the current path.
Q.15
An ohmmeter is an instrument for measuring
Q.16
A red, red, orange, gold resistor has a nominal value of
Q.17
A twoterminal variable resistor is known as a
Q.18
The maximum resistance value for a brown, red, yellow, gold resistor is
Q.19
Which of the following is not a type of energy source?
Q.20
A thermistor is a type of
Q.21
A potentiometer is a twoterminal variable resistor.
Q.22
Electrons in the outer orbit are called
Q.23
An ammeter is an electrical instrument used to measure
Q.24
The minimum resistance value for a blue, gray, red, silver resistor is
Q.25
When placed close together, two positively charged materials will
Q.26
A circuit breaker is a
Q.27
Materials with lots of free electrons are called
Q.28
The colored bands for a 4,700 ohm resistor with a ten percent tolerance are
Q.29

A two-terminal variable resistor is known as a

  • potentiometer
  • thermistor
  • rheostat
  • wiper
Q.30

A circuit breaker is a

  • fuse
  • switch
  • resettable protective device
  • resistor
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