A circuit breaker is a
Which of the following is not a type of energy source?
Eight-tenths coulomb passes a point in 4 s. The current in amperes is
An ammeter is an electrical instrument used to measure
When placed close together, two positively charged materials will
The conductance of an 8 ohm resistance is
When the current is 2.5 A, how many coulombs pass a point in 0.2 s?
Electrons in the outer orbit are called
The colored bands for a 4,ohm resistor with a ten percent tolerance are
An ohmmeter is an instrument for measuring
A thermistor is a type of
An ohmmeter is an instrument for measuring
A material that does not allow current under normal conditions is a(n)
The current in a given circuit is not to exceedA. Which value of fuse is best?
A free electron is a valence electron that has broken away from its parent atom.
The nominal value of a brown, black, yellow, and gold resistor is 100,ohms.
Resistance limits the current.
The unit of electrical charge is the
An ammeter is connected across the current path.
Free electrons make current possible.
Materials with lots of free electrons are called
An open circuit is one that has a complete current path.
A multimeter measures
A potentiometer is a two-terminal variable resistor.
The unit of electrical charge is the
A neutral atom is one with an equal number of protons and electrons.
If there is 6 A of current through the filament of a lamp, how many coulombs of charge move through the filament in 1.s?
The atomic number is the number of neutrons in the nucleus.
Current flows in a circuit when
A voltmeter is connected across the current path.