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27 Terms
A circuit is __.
a closed loop that electricity can flow through.
An open circuit is __.
a path that is broken, so electricity can’t flow.
A closed circuit is __.
a complete path that lets electricity flow.
Current is __.
the flow of electricity in a circuit.
The unit used for current is __.
Ampere or Amp (A).
The symbol for current is __.
I.
Voltage is __.
the push that makes electricity move.
The unit used for voltage is __.
Volt (V).
The symbol for voltage is __.
V.
Resistance is __.
Resistance controls how much electricity can flow in a circuit when there is a push (voltage) trying to move it.
The unit used for resistance is __.
Ohm (Ω).
A resistor __.
A resistor is a tiny in an electric part used in circuits to limit or control the flow of electricity.
A diode is __.
a component that lets electricity flow in only one direction.
An LED is __.
a light that turns on when electricity flows through it one way.
A capacitor __.
stores and releases electrical energy when needed
The unit used for a capacitor is __.
Farad (F).
A battery is used in a circuit to __.
give the push (voltage) to make electricity flow.
A switch is used to __.
turn a circuit ON or OFF.
Ground in a circuit is __.
a zero voltage point, used for safety and reference.
A power supply is __.
a device that gives voltage and current to a circuit.
A multimeter is used to __.
measure voltage, current, and resistance.
A fuse is __.
a safety part that breaks the circuit if too much current flows.
A circuit breaker is __.
a safety switch that turns off power when there’s a problem.
A short circuit is __.
when electricity takes the wrong path and skips the full circuit.
The difference between AC and DC is __.
AC goes back and forth; DC flows in one direction only.
AC
AC means the electric current changes direction again and again.
AC goes back and forth, not just one way
Dc
DC means the electric current flows in only one direction.Dc goes one way only.
Example.
Batteries give DC power.
The current flows from the positive to the negative side, always the same way.
Flashcards (22)