ELECTRICITY Flashcards
How are wires drawn
as straight lines, when they turn direction it is through a 90degree angle
power supplies/cells are usually drawn where in the circuit
at the top
components like lamps are usually drawn where in the circuit
at the bottom
current
flow of charge in a circuit
does current flow from positive to negative or negative to positive
positive to negative
if a circuit isn’t complete what happens?
the current cannot flow which means the bulbs won’t light up
what measures current
ammeter
what is the unit of current
amps
as the power supply increases what happens to the current
increases
as more components are added what happens to the current
decreases
voltage
push of energy from the power source
units of voltage
volts
how do you measure voltage
with a voltmeter
where is a voltmeter placed in a circuit
parallel with the cell or component
in a series circuit as the power supply increases what happens to the bulbs
they become brighter because more energy is being supplied to them
