basic electrical final
The current, voltage, power, and resistance in a series circuit can be calculated using _____ law.
ohm's
A three-resistor circuit has a total power of 25 W. Two of the resistors dissipate 10 W and 5 W, respectively. How much power does the third resistor dissipate?
10 W
A parallel circuit is composed of two 60 Ω resistors. What is the total resistance?
30
A two-resistor series circuit has an applied voltage of 100 V. The voltage across one of the resistors is 40 V. What is the voltage across the other resistor?
60 V
A voltage that is positive with respect to ground is a(n) _____ voltage.
above-ground
A combination circuit is a circuit that contains
both series and parallel components
The term "load" refers to the amount of _____ in a circuit branch.
current
A voltage _____ is used to provide different voltages between certain points in a circuit.
divider
To symbolize a ground point made by physically driving an object such as a rod or pipe into the ground, a(n) _____ ground symbol is used.
earth
In a series circuit, the sum of the voltage drops is _____ the applied voltage.
equal to
The amount of current flowing through each resistor is directly proportional to its resistance.
false
A junction point of current paths is often called a _____.
node
A series circuit has _____ path(s) for current flow.
one
By observing the direction of current flow through the circuit, voltage _____ can be determined.
polarity
A circuit that has only one path for current flow is a _____ circuit.
series
What force pushes the electrons through a resistance in a circuit?
voltage
A two-branch parallel circuit has a 30 Ω and a 15 Ω resistor. What is the total resistance?
10
What is the applied voltage in a series circuit with two resistors (25 V and 60 V, respectively)?
85 V
Circuits that have more than one path for current flow are _____ circuits.
Parallel
In parallel circuits, the voltage drop across any branch is the same as the _____.
applied voltage
An increase in _____, not resistance, results in an increase of load.
current
In series circuits, the _____ is the same at any point in the circuit.
current
When a circuit has only one path, the _____ is the same at any point.
current
In a parallel circuit, the total resistance is _____ value resistor.
less than the lowest
Solving combination circuits includes a step in which you _____.
reduce the circuit to a simpler circuit
In a parallel circuit, the total current flow is equal to the _____ of the currents through all the branches.
sum
In a combination circuit, to identify series and parallel elements, you should _____.
trace the current path(s)
A parallel circuit composed of a 10 Ω and a 22 Ω resistor. It has a voltage of 60 V. What is the current in the 10 Ω resistor?
6 A
A three branch parallel circuit has resistors of 27 Ω, 56 Ω, and 15 Ω. What is the total resistance?
8.23
A series circuit has a total resistance of 240 Ω and a current flow of 4 A. What is the applied voltage?
960 V
A parallel circuit composed of a 150 Ω and a 270 Ω resistor has a voltage of 120 V. What is the current in the 150 Ω resistor?
0.8 A
