Fundamentals Midterm Written Practice Exam

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The most commonly accepted theory regarding electricity says that an electric current is a flow of ___________ through a conductor.

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The unit of measurement for:
... electrical current is ❌.
... resistance against current flow is ❌.
... electrical force, or pressure, is ❌.
... electrical power, or energy used, is ❌.

Ampere

Farad

Ohm

Volt

Henry

Watt

Hertz

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All materials give at least some amount of resistance to the flow of electricity. However, the resistance given by some metals is very small and we say that these metals are good ______________.

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There is a mathematical relationship between the voltage, the current, and the resistance in an electrical circuit. This relationship is called _____________'s Law.

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Choose the correct prefix to make this statement true: 1,500,000 V = 1.5 ___ V.

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Choose the correct prefix to make this statement true: 0.003 A = 3.0 ___A.

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Choose the correct prefix to make this statement true: 2,200 Ω = 2.2 ___Ω.

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Name the component represented by this schematic symbol shown.

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Name the component represented by the schematic symbol shown.

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Ohm's Law is: _ = x _____

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How many ohms are equal to 20 kΩ?

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Energy that is being stored for possible use is technically, or scientifically, known as _____________ energy.

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In electricity, power in Watts is equal to current times _____________.

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A series circuit has _____________ path(s) for current to follow.

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If current is measured in two different parts of a series circuit, the two measurements will be _____________.

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In a series circuit consisting of one voltage source and three resistors, the sum of all the voltage drops across the three resistors will be equal to ____________.

1

In a series circuit consisting of one voltage source and three resistors, if the resistance of one of the resistors is increased, the voltage drop across it will _______________.

1

In a series circuit consisting of one voltage source and two resistors, if the values of the resistors are equal, we can assume that their voltage drops will be _______________.

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The metric value 16 mA can be expressed as _______________.

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86,000 expressed in scientific notation equals ____________.

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In engineering notation, 82,000 is expressed as shown.

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Mega is what relation to kilo?

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Scientific notation is the most widely used form of technical notation in electronics.

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The metric prefix µ is normally associated with ______________ measurements.

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Resistance is the opposition to electrical current.

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A 100 kΩ +/- 10% resistor is color coded ___________________.

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Which type of resistor is used for high-power applications?

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In the American Wire Gauge sizes, as the numerical value of AWG goes higher, the cross-sectional area of the wire _______________.

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A 250 µA current flowing through a 4.7 kΩ resistor produces a _____________ voltage drop.

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If 12 kΩ resistor carries the current of 12 mA, the resistor voltage drop is 1 V.

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Power rating for a resistor is mainly based on the physical size.

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If the voltage were suddenly switched on in the figure shown, ____________________.

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If a 60 Ω resistor carries the current of 12 mA, what's the voltage drop?

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A 47 MΩ +/- 10% resistor is color coded ____________________.

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If a resistor of 2.2 MΩ is connected across a 1 kV source, current equals about ____________.

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At constant voltage, resistance and current are ______________.

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Which of the following terms is not a resistor rating?

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If I = 27 mA and R = 4.7 Ω in the figure shown, the voltage equals _________________.

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If 12 V and 17 V sources are wired in series aiding, what is the total supply voltage?

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Three resistors are connected in series with a 60 V source. If VR1 = 19 V and VR2 = 14.3 V then what is the voltage drop across R3?

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A 15 kΩ +/- 5% resistor is color coded ___________.

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If a 68 Ω, 33 Ω, 100 Ω, and 47 Ω resistor are connected in series with a 9 V battery supply, the current equals ____________.

1

If a 4.7 kΩ, a 5.6 kΩ, and a 10 kΩ resistor are in series, which resistor drops the most voltage?

1

The voltage drop across any resistor or combination of resistors in a series circuit equals:

1

If 5 V and 16 V power supplies are connected in series aiding, what is the total voltage?

1

If there is 100 mA of current flowing into a three-branch parallel circuit and two of the branch currents are 40 mA and 20 mA, the third branch current is _______________.

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If currents 5 A and 3 A enter a junction from two separate paths, how much current flows out of the junction?

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An open fault in one branch of a parallel circuit results in:

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If a 4.7 kΩ resistor and a 2.2 kΩ resistor are connected in parallel, the total resistance is ______________.

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The total resistance of three parallel resistors equals the sum of the individual resistor values.

1

Identify the rotary switch from the figure shown.

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Using the circuit shown, calculate the voltage drop across each resistor and the total circuit current.
Round your answers to three significant figures.

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Using the circuit in the figure shown, calculate each branch current, total circuit current, and the voltage drop across R3.
Round your answers to three significant figures.

Early College Electrical Technology Test sobre Fundamentals Midterm Written Practice Exam, creado por Kris Salmons el 19/02/2018.

Fundamentals Midterm Written Practice Exam

The most commonly accepted theory regarding electricity says that an electric current is a flow of ___________ through a conductor.

The unit of measurement for: ... electrical current is ❌. ... resistance against current flow is ❌. ... electrical force, or pressure, is ❌. ... electrical power, or energy used, is ❌.

All materials give at least some amount of resistance to the flow of electricity. However, the resistance given by some metals is very small and we say that these metals are good ______________.

There is a mathematical relationship between the voltage, the current, and the resistance in an electrical circuit. This relationship is called _____________'s Law.

Choose the correct prefix to make this statement true: 1,500,000 V = 1.5 ___ V.

Choose the correct prefix to make this statement true: 0.003 A = 3.0 ___A.

Choose the correct prefix to make this statement true: 2,200 Ω = 2.2 ___Ω.

Name the component represented by this schematic symbol shown.

Name the component represented by the schematic symbol shown.

Ohm's Law is: _________ = ____________ x _____________

How many ohms are equal to 20 kΩ?

Energy that is being stored for possible use is technically, or scientifically, known as _____________ energy.

In electricity, power in Watts is equal to current times _____________.

A series circuit has _____________ path(s) for current to follow.

If current is measured in two different parts of a series circuit, the two measurements will be _____________.

In a series circuit consisting of one voltage source and three resistors, the sum of all the voltage drops across the three resistors will be equal to ____________.

In a series circuit consisting of one voltage source and three resistors, if the resistance of one of the resistors is increased, the voltage drop across it will _______________.

In a series circuit consisting of one voltage source and two resistors, if the values of the resistors are equal, we can assume that their voltage drops will be _______________.

The metric value 16 mA can be expressed as _______________.

86,000 expressed in scientific notation equals ____________.

The unit of measurement for:
... electrical current is ❌.
... resistance against current flow is ❌.
... electrical force, or pressure, is ❌.
... electrical power, or energy used, is ❌.

Ohm's Law is: _ = x _____