Study electric current and electrical energy Flash Cards

 
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electric current and electrical energy

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A _________ circuit is a circuit in which all parts are connected by a single loop.
series
A __________ circuit is a circuit in which loads are connected side by side.
parallel
A(n) ___________ is a device that converts light energy energy into electrical energy.
photocell
A(n) ____________ is a device that converts thermal energy into electrical energy.
thermocouple
2 kinds of cells are ___________ cells and ___________ cells.
1. wet (like a cell that uses the juice of a lemon, or a car battery)
2. dry cells (such as batteries in flashlight or small radios)
In electricity, _________ is a device that produces an alectric current by converting chemical or radiant energy into electrical energy.
cell
If the temperature of a metal increases, the resistance will _______.
increase
Does a short pipe have more or less resistance than a long pipe?
less resistance
Does a thick pipe have more or less resistance than a thin pipe?
less resistance
Do insulators have high or low resistance?
high resistance
Does a good conductor have high or low resistance?
low resistance
The opposition to flow of electric charge is called ___________.
resistance
The potential difference between 2 points in a circuit is called ___________.
voltage
What are the 2 kinds of electric current called?
1. direct current (DC)
2. alternating current (AC)
The rate at which charges pass through a given point, measured in amperes, is called ______________.
electric current
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