chapter 3 exam
A series circuit is a circuit in which a specific amount of current leaves the
voltage source and flows through every electrical device in a single path
before it returns to the voltage source - correct answer ✔True
For practical purposes, series circuits are often used for _____ applications,. -
correct answer ✔signal and control
Resistance opposes the flow of electrons. In a series cicuit, the total cicuit
resistance is equal to the sum of all the resistances in series - correct answer
✔True
The opposition to current flow results in a voltage drop of the circuit voltage. -
correct answer ✔True
Kirchffs law states In a series circuit, the sum of the voltage drops across all of
the resistors will equal the applied voltage. - correct answer ✔True
No matter how many resistances there are in a series circuit, the sum of the
voltages across all of the resistances equal the voltage of the source
according to the law of proprtion. - correct answer ✔True
Kirchoffs laws In a series circuit, the current is _______ thriugh the
transformer, conductors, and appliance - correct answer ✔the same
To determine the resistance of each resistive element in the circuit, use the
formula R=E^2/P. E is the rated voltage of the resistor, and P is the rated
power of the resistor. - correct answer ✔True
, The current of the circuit can be determined by the formula I-E/R - correct
answer ✔True
When power supplies are connected in series, the circuit voltage remains the
same as when only one power supply is connected to it, provided polarities
are connected right - correct answer ✔False
In a paralel circuit, the voltage drops across each resistance is equal to the
sum of the voltage drops of each of the resistors in parallel - correct answer
✔true
According to kirchoffs law, the total current provded by the source to a parallel
circuit will equa the sum of the currents of all of the resistors in parallel -
correct answer ✔true
in a parallel circuit the total circuit resistance is always greater than the
smallest resustance - correct answer ✔false
the total resistance of a parallel circuit can be calculated by the ____ method -
correct answer ✔equal resistance, productoversum, or reciprocal work
according to the equal resistance methd, when all the resistances of the
oarallel circuit have the same resistance, divide the resistance of one element
byt he largest element - correct answer ✔false
the product over sum method is used to calcuate the reisstance of _____ at a
time - correct answer ✔2
the advantage of the reciprocal method is tha formula can do as many the
parallel curcuit contains - correct answer ✔true
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