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Draw a parallel circuit with 2 bulbs, 3 ammeter, a resistor and a cell
Draw a series circuit with 2 bulbs, a battery, an close switch and an ammeter
What does the fuse do
A safety device marked with the max.current it can carry
Name 2 electrical dangers
Wires can heat up causing fires, can cause burns or even death if too much current is sent through the body
What is resistance
how difficult it is for electricity to flow through something
True or false : in a series circuit the current is split
false
True or false: in a series circuit the voltage is split
true
True or False : in a parallel circuit the current is split
true
What 'I' are materials that cannot conduct electricity easily
Insulators
Why are metals good conductors?
They have free electrons, charges can move easily
What would happen if i added more bulbs in a series circuit
they would get dimmer
true or false : current is the flow of electrons around a circuit
true
What is a difference between series and parallel circuits?
Series:all in one loop, if a bulb breaks all will go out, current=same, voltage=split. Parallel:on seperate branches, current=split, voltage=same
What is voltage measured in?
volts
What is current measured in?
Amps
What does this symbol represent?
voltmeter
