Circuit Uses Flashcards
What is the role of a cell?
It provides energy
What is the role of a battery?
2 or more cells that provide more energy
What the role of a lamp?
It emits light
What is the role of an open switch?
It prevents electricity to flow around the circuit
What is the role of a closed switch?
It allows electricity to flow around the circuit
What is the role of a fuse?
It is a safety device- it will melt or blow if the current gets too high
What is the role of a voltmeter?
It measures the voltage in a circuit
What is the role of an ammeter?
It measures the current in a circuit
What is the role of a diode?
It allows current to flow one way
What is the role of a resistor?
It slows down the current in a circuit
What is the role of a variable resistor?
It controls the amount of electric current flowing in a circuit or through a component
What is the role of a thermistor?
Its resistance will vary depending on temperature
What is the role of a light dependent resistor?
It changes current flowing in a circuit when the light intensity levels change
