Series Circuit Test

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How many volts does it take to push 2 amperes of current through 20 ohms of resistance?

40

A circuit with resistive elements of 220, 100, 57, and 43 produce what total resistance?

420

What is the drop voltage across each resistor in a 24-volt battery that has four resistors?

6

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 series circuit has a total resistance of 240 Ω and a current flow of 4 A. What is the applied voltage?

960 V

The current, voltage, power, and resistance in a series circuit can be calculated using _____ law.

Ohm's

When a circuit has only one path, the _____ is the same at any point.

current

In the case of an automobile electric system, the chassis of the vehicle is the ___________ side of the circuit.

negative

It is often necessary to know the ________ of the voltage dropped across a resistor?

polarity

Which of the following formulas is the general voltage divider formula?

Ex=(Rx/Rt)Et

Which is the accepted symbol that represents a chassis ground?

a

Which symbol represents an Earth ground?

b

What device is designed to open and disconnect a circuit in the event of excessive current?

fuse

In a circuit, it is assumed the current flows from the negative terminal of a battery to the positive terminal. This means that Point A would be connected to the __________ battery terminal.

negative

The total power in a circuit is equal to the sum of the _____ used by all parts.

power

In a series circuit, each resistor ______________ the flow of current in the circuit.

impedes

A circuit that has only one path for current flow is a _____ circuit.

series

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 series circuit has two resistors that dissipate 10 W and 15 W, respectively. What is the total power dissipation of the circuit?

25 W

A series circuit has a total resistance of 180 Ω and an applied voltage of 120 V. What is the current flow?

0.667 A

When three resistors are connected in series to a 36-V source, with each resistor having a resistance of 200, 300, and 160, what is the first step in calculating the voltage drop across each resistor?

Find the total resistance of the circuit.

A point that is used as a common connection for other parts of a circuit not actually driven into the ground is called a _____ ground.

chassis

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

One of the rules for Ohm's law when finding values of voltage, current, resistance, and power in a series circuit is that the applied voltage is not equal to the sum of the voltage drops across all the resistors.

false

In a one- terminal zero-center voltmeter connected to ground and the probe connected to a Point A, the pointer of the voltmeter gives a ________ indication for voltage.

negative

By observing the direction of current flow through the circuit, voltage _____ can be determined.

polarity

In a one- terminal zero-center voltmeter connected to ground and the probe connected to a Point B, the pointer of the voltmeter gives a ________ indication for voltage.

positive

One of the rules for Ohm's law when finding values of voltage, current, resistance, and power in a series circuit is that the current is the same at any point in the circuit.

true

What insulates an automobile?

rubber tires

What force pushes the electrons through a resistance in a circuit?

voltage

The amount of _____ across a resistor is proportional to its resistance and the circuit current.

voltage drop

What is the applied voltage in a series circuit with two resistors of 25 V and 60 V, respectively?

85 V

In a series circuit, the sum of the voltage drops is _____ the applied voltage.

equal to

In an electronic burglar alarm, when the circuit is connected, all the _________ points will be connected together.

ground


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