Question 1

In the electrical field, ____ notation is used instead of the standard metric prefixes.&#10;A) engineering&#10;B) polish&#10;C) reverse polish&#10;D) hungarian

Accepted Answer

In the electrical field, engineering notation is used instead of the standard metric prefixes. This notation uses powers of 10 that are multiples of 3, such as 10^3, 10^-3, 10^6, etc. For example, instead of writing 0.000001, engineers would write 1E-6, where E represents "x10^". This notation is preferred because it avoids using small or large numbers of zeros, which can be error-prone and difficult to read.

Question 2

____ is the force that pushes the electrons through a wire.&#10;A) Resistance&#10;B) Voltage&#10;C) Inductance&#10;D) Amperage

Accepted Answer

Voltage is the force that pushes electrons through a wire. Resistance opposes the flow of electrons, inductance relates to the production of a magnetic field, and amperage refers to the amount of electrons flowing through a wire per unit of time.

Question 3

There are electrical quantities other than resistance that are also measured in ohms.

Accepted Answer

The unit ohms (symbol: Ω) is used to measure other quantities in electrical circuits such as reactance and impedance.

Question 4

When current flows through a resistor, the resistor becomes hot and dissipates heat.

Accepted Answer

When electric current flows through a resistor, the resistor offers resistance to the flow of current and as a result, it dissipates some energy in the form of heat. This phenomenon is known as Joule heating. Therefore, the resistor becomes hot and may need to be cooled down to prevent damage.

Question 5

Engineering notation is in steps of one thousand instead of ten.

Accepted Answer

Engineering notation uses powers of ten that are multiples of three, which corresponds to steps of one thousand (10^3).

Question 6

Voltage is a measurement of the actual amount of electricity that is flowing through a circuit.

Accepted Answer

Voltage is a measurement of the potential difference of electricity between two points in a circuit, not the actual amount of electricity flowing through it. The actual amount of electricity is measured in amperes.

Question 7

Ohm's law states that it takes 1 volt to push 1 ____ through 1 ____.&#10;A) amp, ohm&#10;B) ohm, amp&#10;C) watt, ohm&#10;D) ohm, watt

Accepted Answer

Ohm's law states that the current (measured in amperes) through a conductor between two points is directly proportional to the voltage (measured in volts) across the two points, and inversely proportional to the resistance (measured in ohms) between them. Therefore, it takes 1 volt of potential difference (voltage) to push 1 ampere (current) through 1 ohm of resistance.

Question 8

R = I x E

Accepted Answer

The correct formula is V = I x R, where V is voltage, I is current, and R is resistance.

Question 9

A(n) ____ is a quantity measurement of electrons.&#10;A) volt&#10;B) ohm&#10;C) ampere&#10;D) coulomb

Accepted Answer

A coulomb is a unit of electric charge, which is a measure of the quantity of electrons present in a material or flowing through a circuit. The other options are related to electric potential (volt), resistance (ohm), and current (ampere), but not quantity of electrons.

Question 10

The ____ is the measure of the resistance to the flow of current.&#10;A) volt&#10;B) ampere&#10;C) ohm&#10;D) coulomb

Accepted Answer

Ohm is the unit used to measure resistance in an electrical circuit. The higher the resistance, the harder it is for current to flow through the circuit. The other options are units of measurement for different quantities- the volt is the unit for measuring electrical potential, the ampere is the unit for measuring electric current, and the coulomb is the unit for measuring electric charge.

Deck 2: Electrical Quantities and Ohms Law