Demetrius Flashcards
To learn
the charge on an object that has more protons than electrons
positive
the quantity that measures how much the device or material reduces the electric current flow through it
resistance
the unit of current or coulomb per second
ampere
a measuring device that is placed in parallel with other components
voltmeter
the type of bonding that allows electrons to move freely through a material
metallic
the name for materials that do not allow electricity to pass through easily
insulators
amount of energy per coulomb
volt
a component that has a constant resistance
ohmic component
metals are excellent conductors of electricity because
negative charges move freely through the metal
explain why diamond is not a conductor of electricity
there are no free electrons
all the outer shell electrons of the carbon atoms are involved in covalent bonding
90 Amps pass through an electric motor in 15 seconds. calculate the charge passing through the motor
=90x15
=1350C
explain why the brightness of a light bulb doesnt change when added in parallel
each globe in parallel gets the full voltage of the power supply
explain why the components get dimmer when components are added in series
the lights have to share the total voltage.
as you add more each gets less voltage
explain whether a filament light bulb is an ohmic component. explain why
it is not an ohmic component. as the temperature increases, so does the resistance
series circuit
A series circuit is formed when all circuit components are on a single loop of wire.
