Module 3 Flashcards
electric current that flows in only one direction
Direct current
the rate of doing work
Power
a circuit having only one path for electricity to follow
Series circuit
a circuit having two or more paths for electricity to follow
Parallel circuit
In order to achieve direct current, the potential difference across a load must not change _____.
Direction
In most applications, if the current remains constant and in one direction, the _____ around each conductor also remains constant.
Electromagnetic field
Electric charge is usually measured in _____. One _____ is defined as 1 ampere.
Coulombs; Coulomb per second
You can calculate the potential difference across a single resistor if you know its _____ and the _____ through it.
Resistance; Current
Doing work at the rate of 1 joule per second is defined as a power of 1 _____.
Watt
When you are solving an electrical problem, you should first draw a(n) _____ and label all the _____.
Diagram; Parts
What kind of circuit has only one path for electricity to follow?
Series circuit
The total resistance in a series circuit equals the sum of all the individual _____ in the circuit.
Resistances
In a parallel circuit, the _____ is the same across all the branches.
Potential difference
If Christmas tree lamps are connected in _____, one lamp may burn out without affecting the others.
Parallel
A(n) _____ circuit has lower resistance than any of its branches, because each branch provides another path for electricity.
Parallel
