basic electrical final

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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


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